Nakshatras of 63 Nayanmars, 12 Alvars, 18 Siddhars, 7 Saptharishis

This article will be a compilation of the birth information of holy beings who were associated with divine deities in some way or other through their selfless devotion and steadfast worship. They have contributed immensely to tradition and history at large through their forte in multidimensional fields spanning across Music, Dance, Yoga, Art, Science, Alchemy, Astronomy, Astrology, Medicine, Manuscripts and a host of other literary masterpieces. Notwithstanding their phenomenal oeuvre and massive contributions that have led to mankind being blessed with literary materials in abundance, they were always devoted taking refuge at the feet of the Lord and dedicating all their achievements to the higher spiritual realm. Lets look at the list of these saintly doyens and document their associated Nakshatra/Birth Information.

63 Nayanmars
The Nayanmars or the Nayanars as they are called were a group of 63 Shaivite Tamil poet saints who were believed to have lived roughly between around the 6th to 9th century. They were known largely for their decorated veneration towards Lord Shiva by singing his hymns and praises across numerous Shiva temples. Listed below is the list of Nayanars along with their birth Nakshatra

1) Thiru Nilakanda Nayanar – Thai – Visagam / Vishakha
2) Iyarpakai Nayanar – Margazhi – Uthiram / Uttara Phalguni
3) Ilayankudimara Nayanar – Avani – Magam / Magha
4) Meypporul Nayanar – Karthikai – Uthiram / Uttara Phalguni
5) Viranminda Nayanar – Chithirai – Thiruvadhirai / Aarudra
6) Amarnidhi Nayanar – Ani – Pooram / Poorva Phalguni
7) Eripaththa Nayanar – Masi – Hastham / Hastha
8) Enathinatha Nayanar – Purattasi – Uthiram / Uttara Phalguni
9) Kannappa Nayanar – Thai – Mrigaseerisham / Mrigashira
10) Kunkiliyak Kalaya Nayanar – Avani – Moolam / Moola
11) Manak Kanychara Nayanar – Markazhi – Swathi
12) Arivattaya Nayanar – Thai – Thiruvadhirai / Aarudra
13) Anaya Nayanar – Karthikai – Hastham / Hastha
14) Murthi Nayanar – Adi – Karthigai / Krithika
15) Muruga Nayanar – Vaikasi – Moolam / Moola
16) Uthira Pasupathi Nayanar – Purattasi – Ashwini
17) Thirunalai Povar Nayanar – Purattasi – Rohini
18) Thirukkuripputh Thondar Nayanar –Chithirai – Swathi
19) Chandicha Nayanar – Thai – Uthiram / Uttara Phalguni
20) Thiru Navukkarasar Nayanar – Chithirai – Sadayam / Satabhisha
21) Kulachirai Nayanar – Avani – Anusham / Anuradha
22) Perumizalai Kurumba Nayanar – Adi – Chithirai / Chitra
23) Karaikkal Ammayar Nayanar – Panguni – Swathi
24) Appoodhi Adikalar Nayanar – Thai – Sadayam / Satabhisha
25) Thiru Nilakanda Nayanar – Vaikasi – Moolam / Moola
26) Naminadhi Nayanar – Vaikasi – Poosam / Pushya
27) Thiru Gnana Sambandhar Nayanar – Vaikasi – Moolam / Moola
28) Eyarkon Kalikamar Nayanar – Ani – Revathi
29) Thirumoola Nayanar – Aippasi – Ashwini
30) Dhandiyadikal Nayanar – Panguni – Sadayam / Satabhisha
31) Moorkka Nayanar – Karthikai – Moolam / Moola
32) Chomachimara Nayanar – Vaikasi – Aayilyam / Ashlesha
33) Chakkiya Nayanar – Margazhi – Pooradam / Poorva Ashada
34) Chirappuli Nayanar- Karthikai – Pooradam / Poorva Ashada
35) Chiruthonda Nayanar – Chithirai – Bharani
36) Kazarirru Arivar Nayanar /Cheraman Perumal Nayanar – Adi – Swathi
37) Gana Nadha Nayanar – Panguni – Thiruvadhirai / Aarudra
38) Kurruva Nayanar – Adi – Thiruvadhirai / Aarudra
39) Pugazh Chozha Nayanar – Adi – Karthigai / Krithika
40) Narchinga Munaiyaraiya Nayanar – Purattasi – Sadayam / Satabhisha
41) Adhipaththa Nayanar – Avani – Aayilyam / Ashlesha
42) Kalikkamba Nayanar – Thai – Revathi 
43) Kaliya Nayanar – Adi – Kettai / Jyeshta
44) Chaththi Nayanar – Aippasi – Poosam / Pushya
45) Aiyadikal Kadavar Kon Nayanar – Aippasi – Moolam / Moola
46) Kanampulla Nayanar – Karthikai – Karthigai / Krithika
47) Kari Nayanar – Masi – Pooradam / Poorva Ashada
48) Ninra Chir Nedumara Nayanar – Aippasi – Barani
49) Vayilar Nayanar – Margazhi – Revathi
50) Munaiyaduyar Nayanar – Panguni – Poosam / Pushya
51) Kazharchinka Nayanar – Vaikasi – Barani
52) Idankazhi Nayanar – Aippasi – Karthikai – Karthigai / Krithika
53) Cheruththunai Nayanar – Avani – Poosam / Pushya
54) Pugazh Thunai Nayanar – Avani – Aayilyam / Ashlesha
55) Kotpuli Nayanar – Adi – Kettai / Jyeshta
56) Pusalar Nayanar – Aippasi – Anusham
57) Mangayar Karasiyar Nayanar – Chithirai – Rohini
58) Nesa Nayanar – Panguni – Rohini
59) Kochengat Chozha Nayanar – Masi – Sadayam / Satabhisha
60) Thiru Nilakanda Yazhppana Nayanar – Vaikasi – Moolam / Moola
61) Sadaiya Nayanar – Markazhi – Thiruvadhirai / Aarudra
62) Isaignaniyar Nayanar – Chithirai – Chithirai / Chitra
63) Sundaramurthy Nayanar – Adi – Swathi

The names of the Nayanars were first compiled by Sundarar (Sundaramurthy Nayanar) and later expanded by Nambiyandar Nambi in the 10th century who included Sundarar also in the canonical list as #63. There are also said to be 275 Paadal Petra Sthalams which are said to be the Shiva temples glorified through devotional verses and poetic hymns composed by the Nayanars. This list also became 276 later with the introduction of an additional Shiva temple called Thiruvidaivayil as its believed that initially the manuscripts were missing and once the authentic verses happened to be discovered, it was integrated by the scholars and the tally extended to 276. Out of these 63 Nayanars, 3 of them happen to be females viz Karaikkal Amaiyyar (#23), Mangayar Karasiyar (#57) and Isaignaniyar (#62). Isaignaniyar's husband Sadaiya Nayanar (#61) and son Sundaramurthy (#63) also form part of the list of Nayanmars.

While there are 63 Nayanars, the initial 275 temples are specifically identified and designated by the work of 3 of the Nayanars. The hymns composed by these three Nayanars are compiled into the first seven volumes of the Shaivite holy canon known as the Tevaram. The 3 Saints are by themselves identified as the Moovar (translated as "The Three Great Saints"). The Moovars are namely:
- Thiru Gnana Sambandhar Nayanar (#27 in above list of 63)
- Thiru Navukkarasar Nayanar also known popularly as "Appar" (#20 in above list of 63)
- Sundaramurthy Nayanar also known as "Sundarar" (#63 in above list of 63)

There is however one prominent saint called Manickavasagar who is missed out in the list of 63 Nayanars and not considered as one of the Nayanars. This is because Saint Manickavasagar's timing fell outside the list of 63 Nayanars compiled by Nambiyandar Nambi around the 10th century. Manickavasagar's entry was at a slightly later point in time and he instead gets grouped under the status of  the "Naalvar" (Translated as the 4 great saints). The author "Sekkizhar" in his 12th century work titled "Periya Puranam" mentions the 4 names which includes the 3 Moovars plus Manickavasagar. Thus the Naalvar consists of the 3 major Tevaram hymnists alongside Manickavasagar who penned the literary work of Thiruvasagam. In almost all of the 275 Paadal Petra Sthalams, you can witness dedicated shrines of most Nayanars and especially the 4 hallowed saints termed as the "Naalvar". The 4 preceptors or Naalvars are listed below:
- Thiru Gnana Sambandhar Nayanar also known as "Sambandhar" (#27 in above list of 63)
- Thiru Navukkarasar Nayanar also known popularly as "Appar" (#20 in above list of 63)
- Sundaramurthy Nayanar also known as "Sundarar" (#63 in above list of 63)
- Manickavasagar originally coined as "Vadavoorar" (Not part of the list of Nayanars but grouped under "Naalvar" by Sekkizhar in Periya Puranam)

Thus, we have 63 Nayanars and additionally Manickavasagar who is not part of the list of 63. Later, there have also been references of a 64th Nayanar added in the form of the venerated Tamil Poet "Thiruvalluvar" from Mylapore who is known for penning the majestic work of "Thirukkural". However most popular rosters list only the 63 Nayanars and there is no place specifically for Manickavasagar or Thiruvalluvar as their time period was outside the list initially compiled as 63. Lets however document the Nakshatra information of both Manickavasagar and Thiruvalluvar along with Deiva Sekkizhar who was a 12th century poet who authored "Periya Puranam" detailing the lives of the 63 famous Shiva devotees or Nayanmars and also that of the scholar Nambiyandar Nambi who initially compiled the list of 63 Nayanars in the "Tevaram" which later became the basis for Sekkizhar to author the "Periya Puranam". Also documenting the information of the great King Raja Raja Chozha who was a contemporary of Nambiyandar Nambi. The King requested Nambiyandar Nambi to compile the lost Shaivite Thirumurais and hence he was also instrumental in recovering the divine hymns composed by the Nayanars. The King's son Rajendra Chozha, another great Chozha emperor was also a great Shiva Bhakta and responsible for the construction of the iconic Gangaikonda Cholapuram temple.

One more thing to note is that in many of the cases listed of the Nayanars, the Nakshatra information may not be the one in which these great saints historically took birth due to lack of recording the same but can be linked to their Guru Pooja day which is when they attained mukti and became one with the Gods. Many of the traditional celebrations and primary day observed of the Nayanars is linked largely to their liberation day.
- Manickavasagar – Ani – Magam / Magha
- Thiruvalluvar - Vaikasi – Anusham / Anuradha
- Deiva Sekkizhar - Vaikasi – Poosam / Pushya
- Nambiyandar Nambi –  Vaikasi – Punarpoosam / Punarvasu
- Sri Raja Raja Chozha –  Aippasi – Sadayam / Satabhisha
- Sri Rajendra Chozha – Adi – Thiruvadhirai / Aarudra

There is an additional important grouping to be noted especially relating to the Naalvars of the Nayanars. The Naalvars also belong to a classification called as 'Kuravars' who are known for being spiritual teachers, preceptors and enlightened souls. Kuravars by themselves are divided into 2 groupings namely Samaya Kuravars and Santhana Kuravars. The Nalvars are also called as the "4 Samaya Kuravars" and are said to be preceptors of religion and devotion. Another category of "Kuravars" are termed as the "4 Santhana Kuravars" mentioned to be preceptors of philosophy and lineage. The Santhana Kuravars are again classified into 2 groups of 4 each termed as "Agach Santhana Kuravar" and "Purach Santhana Kuravar". The former relates to the inner or celestial lineage and are said to reside in Mount Kailash whereas the latter pertains to the outer or earthly lineage referring to scholars who lived on Mother Earth. The Agach Santhana Kuravars are believed to have received the ultimate truth directly from the source of wisdom and knowledge of Lord Dakshinamurthy who is an aspect of Lord Shiva himself. The Purach Santhana Kuravars were human saints and erudite scholars who walked the earth and spread knowledge. The Purach Santhana Kuravars or just Santhana Kuravars as they are usually quoted are said to have lived around 500 years later than the Samaya Kuravars / Naalvars in about the 13th to 14th century. Listing below the birth information of the Purach Santhana Kuravars
- Meykandar – Aippasi – Anusham / Anuradha
- Arul Nandhi Shivam – Purattasi – Pooram / Poorva Phalguni
- Maraignana Sambandhar – Avani – Uthiram / Uttara Phalguni
- Umapathi Shivachariyar – Chithirai – Hastham / Hastha

Thus, to summarize on the Kuravars. Kuravars are of 2 categories viz Shaiva Samaya Kuravars and Shaiva Santhana Kuravars. The Santhana Kuravars are further divided into 2 sub classifications of 4 each known as Agach Santhana Kuravars and Purach Santhana Kuravars. Listed below the names of the Samaya Kuravars and the Santhana Kuravars

The Samaya Kuravars also known as Naalvars:
- Thiru Gnana Sambandhar also known as "Sambandhar"
- Thiru Navukkarasar also known as "Appar"
- Sundaramurthy also known as "Sundarar"
- Manickavasagar originally known as "Vadavoorar"

The Agach Santhana Kuravars:
- Thiru Nandi Devar known as being Nandi, Lord Shiva's bull
- Sanath Kumara known to be a mind born son of Lord Brahma
- Satya Gyana Darshini is a celestial saint from the higher realms
- Paranjyoti Munivar is a divine sage who briefly descended to earth to pass on the knowledge

The Purach Santhana Kuravars:
- Meykandar originally born as Tiruvennainallur and mentioned to be a prodigy
- Arul Nandhi Shivam known as Sakalagama Panditar - master of all sacred Agamas
- Maraignana Sambandar known as Kankatti Bandaram due to tying cloth over eyes to control senses
- Umapathi Shivachariyar known as Korravankudi Sivam by the name of his village

Since the saints belonging as part of Agach Santhana Kuravars are said to be divine creations that ascended directly in Mount Kailash and not Earth, there is no birth information about them. The tradition of the Agach Santhana Kuravars is said to begin from Lord Dakshinamurthy. The Adi Guru is said to be the primary Guru of Nandi Devar and Nandi Devar in turn is said to be the Guru of Sanath Kumara and so on. The 4th Agach Kuravar Paranjyoti Munivar however was briefly instructed to descend from Kailash to Earth in order to pass on the knowledge. He discovered a noteworthy disciple in the form of a 2 year old prodigy called Tiruvennainallur. He initiated and invoked the child about the final truth and higher knowledge giving him the title of Meykandar. Thus Meykandar from Purach Santhana Kuravar is said to be the disciple of Paranjyoti Munivar who is said to be the root of knowledge transfer from the group of Agach Santhana Kuravars to Purach Santhana Kuravars. The Purach Santhana Kuravars are together responsible for having penned the Meikanda Shastras which are 14 foundational philosophical texts of Tamil Shaiva Siddhantham.

Additionally, from the list of the Agach Santhana Kuravars, Sanath Kumara is also considered as one of the Kumaras and is grouped under the classification of 'Sanakadi Rishis'. They are said to be mind born sons of Lord Brahma with their life long goal being inclined to the pursuit of learning and spiritual service. These 4 Sages are usually seen under the tutelage of Lord Dakshinamurthy to seek the ultimate truth and get imparted with supreme knowledge. Listed below are the names of the Sanakadi Rishis

The Sanakadi Rishis or 4 Kumaras:
- Sanaka
- Sanandana
- Sanatana
- Sanath Kumara

12 Alvars
In very similar vein to the Nayanars, the Alvars are said to be 12 specific Tamil poet saints who lived between the 5th and 10th century and showcased their deep devotion and admiration to Lord Vishnu in the form of divine hymns and citations. Their extensive work has been compiled in the Naalayira Divya Prabandham consisting of 4000 verses. Like how Nayanars upheld the Shaivite tradition, the Alvars spread the bhakti movement and shaped the Sri Vaishnava tradition. Akin to the 275 Padal Petra Sthalams dedicated to Lord Shiva where Nayanars have potrayed their devotions, here there are 108 temples popularly coined as "Divya Desams" where the Alvars have sung hymns, expressed devotion and paid obeisance to Lord Vishnu. Out of the 108 Divya Desams, only 106 are in the physical realm belonging in Planet Earth with 105 of these located in India and the one located outside India being at Saligramam in Nepal. The two Divya Desams not located on Earth happen to be Kshira Sagara - the divine ocean in Heaven and Vaikunta - the heavenly abode of Vishnu & Lakshmi. Listed below is the list of Alvars along with their Thiru Nakshatra which is the holy birth star of divine manifestations.

1) Poigai Alvar – Aippasi – Tiruvonam / Shravana
2) Bhoothath Alvar – Aippasi– Avittam / Dhanishta
3) Pei Alvar – Aippasi – Sadayam / Satabhisha
4) Thirumalisai Alvar – Thai – Magam / Magha
5) Namm Alvar – Vaikasi – Visagam / Vishakha
6) Madhura Kavi Alvar – Chithirai – Chithirai / Chitra
7) Kulasekara Alvar – Masi – Punarpoosam / Punarvasu
8) Periya Alvar – Ani – Swathi
9) Andal Alvar– Adi – Pooram / Poorva Phalguni
10) Thondaradipodi Alvar – Margazhi – Kettai / Jyeshta
11) Thiruppan Alvar – Karthikai – Rohini
12) Thiru Mangai Alvar – Karthikai – Karthigai / Krithika

Out of the 12 Alvars, the only solitary female saint happens to be Devi Andal. In fact Andal is also the most well known of the Alvars and commands separate deity worship in most Vaishnava temples. Her effusive devotion and profusive love towards Lord Ranganatha is said to be unparalleled and expressed in reverence through her divine pasurams. All the 12 Alvars are also associated with a symbol of Lord Vishnu and represent a form or avatar of Vishnu. Lets look at the symbolic connection of Alvars with Lord Vishnu:
- Poigai Alvar – Panchajanya (Vishnu's Conch)
- Bhoothath Alvar – Kaumodaki (Vishnu's Mace)
- Pei Alvar – Nandaka (Vishnu's Sword)
- Thirumalisai Alvar – Sudarshana Chakra (Vishnu's Discus)
- Namm Alvar – Vishwak Sena (Vishnu's Commander)
- Madhura Kavi Alvar – Padma (Vishnu's Lotus)
- Kulasekara Alvar – Kaustubha (Vishnu's Necklace)
- Periya Alvar – Garuda (Vishnu's Mount)
- Andal Alvar – Bhoo Devi (Vishnu's wife, the Earth Goddess)
- Thondaradipodi Alvar – Vanamalai (Vishnu's Garland)
- Thiruppan Alvar – Srivatsa (Vishnu's Chest consisting of an auspicious mark)
- Thiru Mangai Alvar – Saranga (Vishnu's Bow)

Apart from the Alvars, there were also few other prominent personalities who propagated and spread the Vaishnava philosophy. Though, they may not be classified or acknowledged as one among the Alvars, they are still very widely revered and venerated by the Vaishnava community. Sriman Nathamuni is credited for resurrecting the lost 4000 Divya Prabandhams. Swami Alavandar also known as Yamunacharya is the grandson of Nathamuni and widely known as the grand guru of Ramanuja setting the groundwork for Advaita philosophy and also penned the Stotra Ratnam. Sri Thirukkottiyur Nambi also called Goshti Purana was a renowned guru who tested Sri Ramanujacharya eighteen times before revealing the inner meanings of sacred mantras. Sri Periya Nambi also known as Purna Acharya is the main guru of Ramanuja who was instrumental in initiating him into the Vaishnava fold. Sri Koorath Azhwan also known as Kuresa was the primary disciple of Ramanuja and is believed to have saved him from a Chola King, also known for being an incarnation of Vishnu's mark on his chest "Srivatsa". Ramanujacharya is considered as a great reformer and central proponent of the Vaishnava philosophy. Sri Ananth Azhwan also known as Ananta Acharya was a devoted disciple whom Sri Ramanujacharya sent to Tirumala to establish a flower garden for Lord Venkateswara Swamy. Engal Azhwan also called Vishnuchitta was a noted scholar who wrote commentaries on the Vishnu Purana. Swami Mudali Andan also known as Dasarathi is considered as one of the foremost disciples of Ramanujacharya and also mentioned to be an incarnation of Lord Rama is known for establishing Pancha Narayana temples as per the instruction of his Guru. Parashara Bhattar, the son of Koorathazhwan is said to have written the commentary for the definitive Vishnu Sahasranamam. Vedanta Desikar also known as Venkatanatha is believed to have revived sacred texts and known for many religious and poetic works and also said to be an Avatar of Ghanta, the bell pertaining to Sri Venkateshwara Perumal Temple of Tirumala. Manavala Mamunigal is widely celebrated in temples like Srirangam and is also believed to be a manifestation of the divine serpent Adishesha. Lets take a look at the birth information of these famous Vaishnava saints.
- Sriman Nathamuni – Ani – Anusham / Anuradha
- Swami Alavandar – Adi – Uthiradam / Uttara Ashada
- Sri Thirukkottiyur Nambi – Vaikasi – Rohini
- Sri Periya Nambi – Margazhi – Kettai / Jyeshta
- Sri Koorath Azhwan – Thai – Hastham / Hastha
- Sri Ramanujacharya – Chithirai – Thiruvadhirai / Aarudra
- Sri Ananth Azhwan – Chithirai – Chithirai / Chitra
- Sri Engal Azhwan – Chithirai – Rohini
- Swami Mudali Andan – Chithirai – Punarpoosam / Punarvasu
- Parashara Bhattar – Vaikasi – Anusham / Anuradha
- Vedanta Desikar – Purattasi – Tiruvonam / Shravana
- Sri Manavala Mamunigal – Aippasi – Moolam / Moola

18 Siddhars
In the Tamil Siddha tradition, 18 sages are mentioned as prominent and are said to have lived during the times of the Gods dating way back to the time when the epics Ramayana & Mahabharatha were scripted. They are said to have made pioneering progress in a significant number of fields. These Siddhars are also known for their staunch devotion to the divine and have even been like a guiding force to the deities. There are mythological stories of the Siddhars consecrating the Linga at various temples and performing worship. They are also known to be mystical and are said to have transcended across time periods with some of them even living across multiple yugas. Unlike the list of the 63 Nayanars or the 12 Alvars, when it comes to the Siddhars there are various variations witnessed and recorded. Different temples have different 18 Siddhars as representations but however majority of them tend to tally across various lists with just a few variances here and there. Sharing below the most common list of 18 Siddhars and their relevant birth information. The listing below is from Arulmigu Sri Kolanjiappan temple at Virudachalam in Cuddalore district which is dedicated mainly to Lord Murugan. Not only are their carvings of the 18 Siddhars here, but it also describes details for each of them such as birth Nakshatra, solar month, time of living period and their place of Jeeva Samadhi.  

1) Agathiyar Siddhar – Margazhi – Aayilyam / Ashlesha
2) Patanjali Siddhar – Panguni – Moolam / Moola
3) Thirumoolar Siddhar – Purattasi – Avittam / Dhanishta
4) Kamalamuni Siddhar – Vaikasi – Poosam/ Pushya
5) Kudambai Siddhar – Adi – Visagam / Vishakha
6) Korakkar Siddhar – Karthikai – Aayilyam / Ashlesha
7) Dhanvantri Siddhar – Aippasi – Punarpoosam / Punarvasu
8) Sundarananthar Siddhar – Avani – Revathi
9) Konganar Siddhar – Chithirai – Uthiradam / Uttara Ashada
10) Sattaimuni Siddhar – Avani – Mrigaseerisham / Mrigashira
11) Valmiki Siddhar – Purattasi – Anusham / Anuradha
12) Ramadevar Siddhar – Masi – Pooram/ Poorva Phalguni
13) Agapeyar Siddhar – Panguni – Mrigaseerisham / Mrigashira
14) Idaikadhar Siddhar – Purattasi – Thiruvadhirai / Aarudra
15) Machamuni Siddhar – Adi – Rohini
16) Karuvurar Siddhar – Chithirai – Hastham / Hastha
17) Bhogar Siddhar – Vaikasi – Bharani
18) Pambatti Siddhar – Karthikai – Mrigaseerisham / Mrigashira

Apart from the list mentioned above, there are some scattered information which replicates the above list ditto except for Agapeyar Siddhar who is replaced by Nandeeswarar Siddhar. There are also few temples in Chennai consisting idols of the 18 Siddhars. Recounting the ones listed in them to tally for the variations.
Thanga Murugan / Palandi Amman Temple, Vanuvampet - Agathiyar, Pambatti, Ramadevar, Pulippani, Kudambai, Bhogar, Azhugunar, Idaikadhar, Konganar, Sattaimuni, Theraiyar, Machamuni, Pulastya, Korakkar, Thirumoolar, Kalanginathar, Karuvurar, Kamalamuni
Annai Adhi Parasakthi Temple, Pallikaranai - Agathiyar, Siva Vakiyar, Bhogar, Pulastya, Kalanginathar, Sattaimuni, Karuvurar, Azhugunar, Theraiyar, Idaikadhar, Machamuni, Konganar, Pulippani, Thirumoolar, Kamalamuni, Ramadevar, Punnakeesar, Pambatti
Chidambara Periya Swamigal Temple, Velachery - Agathiyar, Thirumoolar, Ramadevar, Sundarananthar, Machamuni, Sattaimuni, Bhogar, Korakkar, Karuvurar, Idaikadhar, Konganar, Dhanvantri, Pambatti, Azhugunar, Siva Vakiyar, Kalanginathar, Punnakeesar, Pulippani
Sri Chakra Maha Meru 18 Siddhar Temple, Madambakkam - Pattinathar, Kaduveli, Siva Vakiyar, Kambili, Bhogar, Pulippani, Vallalar, Idaikadhar, Kaga Bhujandhar, Agapeyar, Kanjamalai, Sennimalai, Kapilar, Karuvurar, Azhugunar, Pambatti, Sattaimuni, Kudambai

Thus, from various sources observed it is pretty evident that there are minor variations witnessed. The list of the last mentioned temple Maha Meru is however of the Siddhars associated with the 9 Navagrahas with 2 Siddhars provided for each of the Navagrahas in order of Sun, Moon, Mars, Mercury, Jupiter, Venus, Saturn, Rahu and Ketu. As some names get used interchangeably, documenting below few of the Siddhars birth information not forming part of the original list of 18 above:
- Siva Vakiyar Siddhar – Thai – Magam / Magha
- Kaga Bhujandar Siddhar – Panguni – Uthiram / Uttara Phalguni
- Pulippani Siddhar – Purattasi - Swathi
- Punnakeesar Siddhar – Vaikasi – Chithirai / Chitra
- Kalangi Nathar Siddhar - Chithirai - Ashwini
- Azhugunar Siddhar – Vaikasi – Visagam / Vishakha
- Theraiyar Sidhar – Vaikasi – Aayilyam / Ashlesha
- Nandeeswarar Siddhar – Vaikasi – Visagam / Vishakha
- Vallalar Siddhar – Purattasi - Chithirai / Chitra

Also, there are few Siddhars who do not form part of the traditional 18 Tamil Siddhars list but tend to be associated with certain Nakshatras. Sharing that also below for reference. Please however note that the information may not be completely accurate, it could be either Thiru Nakshatra or the Guru Pooja Day. 
- Vyasa Siddhar – Associated with Jyeshta / Kettai
- Romarishi Siddhar – Associated with Karthigai / Krithika
- Dakshinamurthy Siddhar – Associated with Tiruvonam / Shravana
- Kowbalar Siddhar – Associated with Sadayam / Satabhisha
- Jyoti Muni Siddhar – Associated with Pooratathi / Poorva Bhadrapada
- Damaragar Siddhar – Associated with Uttiratathi / Uttara Bhadrapada
- Pattinathar Siddhar – Associated with Uthiradam / Uttara Ashada
- Kaduveli Siddhar – Associated with Pooradam / Poorva Ashada

7 Saptharishis
Other than the 18 hallowed Siddhars from South, there is also a Rishi tradition termed as 'Saptharishis' known as the 7 divine sages of Hinduism. They are said to be seers embodying divine wisdom and cosmic order. The names of these Rishis keep changing across different cosmic cycles. When it comes to birth information of these venerated Rishis, there isn't much information available especially because these Rishis have transcended across multiple eons. Sharing whatever information that is currently available. As per the current age in existence, the 7 Rishis are listed as below:

1) Vasishta Saptharishi – Vaishakha Shukla Paksha Navami – Poosam / Pushya
2) Vishwamitra Saptharishi – Karthik Shukla Paksha Tritiya – Anusham / Anuradha
3) Gautama Saptharishi – Chaitra Shukla Paksha Pratama – No information on Nakshatra
4) Kashyapa Saptharishi – Jyeshta Shukla Paksha Panchami – No information on Nakshatra
5) Bharadwaja Saptharishi – No specific Bharadwaja Jayanthi – No information on Nakshatra
6) Atri Saptharishi – No specific Atri Jayanthi – No information on Nakshatra
7) Jamadagni Saptharishi – No specific Jamadagni Jayanthi – No information on Nakshatra

Based on observation, it is seen that there is not much birth information recorded for the Saptharishis. Only for Rishi Vasishta and Rishi Vishwamitra, there are sources explicitly mentioning that they were born in Pushya and Anuradha respectively. For other Rishis, there is devoid of information when it comes to birth. Also there are other Rishis also who have been part of the Saptharishis cosmic cycle in earlier existences such as Angiras, Bhrigu, Kratu,Kutsa, Garga, Gungu, Marichi, Pulaha, Pulastya, and few others.

There is a common anniversary which takes place for the Rishis as a whole that happens every year termed as Rishi Jayanthi. Universally the Rishis are celebrated on Rishi Jayanthi or Rishi Panchami as its called which occurs on the 5th waxing day of Panchami in the lunar month of Bhadrapada. It normally tends to take place a day after Ganesh Chaturthi which also is on Bhadrapada month but on the 4th waxing day of Chaturthi.

Documenting Few Other Important References:
As we have covered the 63 Nayanars, 12 Alvars, 18 Siddhars and the 7 Saptharishis in detail along with further references of doyens who lived around their time period who didn't get classified under the title of the above listed categories yet contributed heavily through their works and staunch devotion to the divine. One interesting point to note is that there is only one saint who gets to be a primary part of 2 of the lists above which are the 63 Nayanars and 18 Siddhars which happens to be respected 'Sage Thirumoolar'. He is slotted under #29 in the list of 63 Nayanars and you can also find his name in the Siddhar's list at #3 out of the 18 Tamil Siddhars. Though the Siddha list is not completely consistent, there is no question about Thirumoolar not being part of this sacred tradition. You would note the difference however in his Nakshatra and that is because the one listed under 63 Nayanars is the "Guru Pooja Nakshatra" and the one under 18 Siddhars is the "Thiru Nakshatra". Sage Agasthya could also be considered as someone who's part of the 18 Siddhar list and also the 7 Saptharishis probably in an earlier cosmic cycle. 

The Nakshatras of Important Characters in Ramayana, Mahabharata and Other Divine Personalities

The Ramayana and Mahabharata are considered to be 2 magnum opus masterpiece epics of ancient Hindu literature, hinduism and mythology. They are collectively titled as Itihasa which translates to narration of historic events of the past. Vedas are of 4 types Rig, Sama, Yajur and Atharvana and these 2 epics kind are considered as the 5th Veda in addendum to the Puranas and are generally noted as Itihasa Puranas making spiritual learnings and philosophical teaching accessible to all through the mode of storytelling. Ramayana is primarily attributed to Sage Valmiki, however the Tamil version of the same is said to have been scripted by Sage Kambar. Mahabharata was compiled by Sage Vyasa and believed to be one of the longest epics ever penned. There is a mythology associated that Lord Ganesha was the scribe and wrote the epic based on the Sages instructions. This article will capture the Nakshatras of the important characters of both these 2 hallowed epics of Indian literature Ramayana and Mahabharata. There is also a documentation of the Thiru Nakshatra and birth Tithi information of few divine personalities who lived across the ages by performing pioneering feats. They were very highly venerated for achieving tremendous progress in multitude of fields and deeply revered with respect to their service to the divine.

Nakshatras linked with Important Characters of Ramayana
Rama - Punarpoosam / Punarvasu (7th Avatar of Vishnu and the main character of the Ramayana)
Sita - Magam / Magha (Rama's wife)
Lakshmana - Aayilyam / Ashlesha (Rama's brother who accompanied him to the forest)
Bharatha - Poosam / Pushya (Rama's other brother)
Shatrughana - Aayilyam / Ashlesha (Rama's another brother)
Valmiki - Anusham / Anuradha (The Sage who scripted the Ramayana)
Kamban - Pooratathi / Poorva Bhadrapada (Sage who scripted the Ramayana in its Tamil version)
Vasishta - Poosam / Pushya (The primary Guru of Rama)
Vishwamitra - Anusham / Anuradha (The spiritual guide of Rama)
Vaalee - Pooradam / Poorva Ashada (The elder of the monkey brothers and king of Kishkindha)
Sugriva - Magam / Magha (The younger of the monkey brothers known for loyalty)
Hanuman - Moolam / Moola (The most loyal devotee of Rama)
Lava - Hastham / Hastha (The twin son of Rama)
Kusha - Hastham / Hastha (The other twin son of Rama)
Ravana - Moolam / Moola (The primary villain of the Ramayana)
Vibhishana - Tiruvonam / Shravana (The righteous younger brother of Ravana)
Kumbhakarna - Pooratathi / Poorva Bhadrapada (Brother of Ravana known for sleep & eating)
Jatayu - Uthiratathi / Uttara Bhadrapada (Vulture who sacrificed life to save Sita)
Varuna - Sadayam / Sathabhisha (The God of ocean who helped Rama to reach Lanka)
Urmila - Kettai / Jyeshta (The wife of Bharatha and sister of Sita)
Janaka - Magam / Magha (The father of Sita and Urmila)
Guhan - Punarpoosam / Punarvasu (Rama's dear friend who helped him cross the Ganga)
Maricha - Mrigaseerisham / Mrigashira (Demon disguised as golden deer to kidnap Sita)
Note: Most of the above are correct information. However there is no much data of birth Nakshatra's available for Rama's father Dasharatha and his 3 wives. There is a reference of Dasharatha being Revathi but its not authenticated and there is no Nakshatra data for his 3 wives viz Kaushalya (mother of Rama), Sumitra (mother of twins Lakshmana and Shatrugana) and Kaikeyi (mother of Bharatha).

Nakshatras Linked with Important Characters of Mahabharatha
Krishna - Rohini (8th Avatar of Vishnu and the main character of the Mahabharatha)
Balarama - Aayilyam / Ashlesha (Krishna's elder brother)
Vasudeva - Rohini (Father of Lord Sri Krishna)
Devaki - Revathi (Mother of Lord Sri Krishna)
Vyasa - Kettai / Jyeshta (The Sage who scripted and compiled the Mahabharatha by giving instructions to Lord Vinayaka)
Yudhishthira - Kettai / Jyeshta (Eldest of the Pandava brothers also known as Dharman and famous for righteousness and truth)
Bheema - Magam / Magha (Second of the Pandava brothers known for physical strength)
Arjuna - Uthiram / Uttara Phalguni (Third of the Pandava brothers known as the worlds greatest archer)
Nakula - Ashwini (Fourth of the Pandava brothers and twin to Sahadeva known for mastery over horses)
Sahadeva - Ashwini (Fifth of the Pandava brothers and twin to Nakula known for skill in astrology)
Draupati - Pooratathi / Poorva Bhadrapada (The spouse of the 5 Pandavas)
Pandu - Uthiram / Uttara Phalguni (The father of the Pandavas)
Kunthi - Thiruvadirai / Aarudra (The spouse of Pandu)
Abhimanyu - Revathi (The son of Arjuna)
Subhatra - Sadayam / Satabhisha (The second wife of Arjuna)
Saliyan - Uthiradam / Uttara Ashada (Powerful warrior king and maternal uncle of twin pandava brothers Nakula & Sahadeva)
Karna - Pooratathi / Poorva Bhadrapada (Known for unmatched warrior skills, generosity and loyalty)
Parashurama - Uthiram / Uttara Phalguni (The ultimate guru of Karna granting him supreme martial power and also leading to his downfall)
Shantanu - Sadayam / Satabhisha (The King of Hastinapur)
Satyavati - Sadayam / Satabhisha (The later spouse of King Shantanu)
Bhishma - Moolam / Moola (Originally known as Devavrata, he was the 8th son of King Shantanu and river Goddess Ganga signifying duty, loyalty and sacrifice)
Dhritarashtra - Uthiradam / Uttara Ashada (The blind king and father of the Kauravas)
Gandhari - Sadayam / Satabhisha (The wife of Dhritarashtra, was granted a boon by Sage Vyasa and eventually gave birth to 100 sons and one daughter named Dushala)
Duryodhanan - Bharani (The eldest of the 100 brothers and leader of the Kauravas)
Dushashan - Uthiratathi / Uttara Bhadrapada (The brother of Duryodhanan)
Shakuni - Sadayam / Satabhisha (The brother of Queen Gandhari and the mastermind of the Kauravas)
Vidhurar - Rohini (Half brother of King Dhritarashtra and King Pandu)
Dronacharya - Pooratathi / Poorva Bhadrapada (Royal preceptor and Guru to both the Pandavas and Kauravas)
Ashwathama - Ashwini (The only son of Dronacharya and a master warrior who fought on the Kauravas side)
Note: Majority of the information is correct especially with regard to the Pandavas. However there are some skepticisms like for instance there is a reference of Bheema and Duryodhana being born on same date but they appear to have different Nakshatras. It could be correct however if they were born on the same date but a year apart. Also some conflicting information on Dhritarashtra and Dronacharya. Have updated the list based on what seems to be the most likely option. Arjuna also is listed under different Nakshatras but the most plausible and authentic one of Uttara Phalguni has been documented.

Nakshatras of Divine Personalities connected to God:
The list below documents the Thiru Nakshatras of few divine personalities who were born on earth across different centuries and mentioned to have paid homage to God through their devout worship and steadfast beliefs propagating and spreading Hinduism in multifold. The term Thiru Nakshatra is equated as Sacred birth star and is coined for honoring and respecting the birth of significant Saints or Acharyas.

Adi Shankaracharya - Punarpoosam / Punarvasu (Philosopher of Advaita Vedanta, said to be born on a Sunday during Shukla Paksha Panchami)
Ramanujacharya - Thiruvadhirai / Aarudra (Philosopher of Vishishtadvaita Vedanta, said to be born during Shukla Paksha Panchami)
Madhavacharya - Tiruvonam / Shravana (Philosopher of Dvaita Vedanta, said to be born on the auspicious day of Vijayadasami during Shukla Paksha Dasami)
Appaya Dikshitar - Uthiratathi / Uttara Bhadrapada (Master of Advaita Vedanta, a philosopher and polymath, he was born in Kanya month during Krishna Paksha Trayodashi)
Neelakanta Dikshitar - Anusham / Anuradha (Considered to be the great grand nephew of Appaya Dikshitar, he served as Prime Minister to King Thirumalai Nayaka of Madurai and said to have a deep devotion to Goddess Meenakshi. He was born in Tamil month of Aippasi in Shukla Paksha Dwitiya)
Thirumalai Nayaka - Poosam / Pushya (Known as a celebrated emperor of the Madurai Nayak Dynasty, he pioneered the unique Madurai style of Dravidian architecture. He was born in the Tamil month of Thai in the full moon of Pournima)
Sri Tatacharya - Sadayam / Satabhisha (A prominent saint of Sri Vaishnava tradition serving as royal preceptor of the Vijayanagara empire. He oversaw a number of Divya Desam temples. Lakshmi Kumara Tatacharya was born on Margashira lunar month during Shukla Paksha Saptami)
Sripada Srivallabha - Chithirai / Chitra (Considered to be the first complete incarnation of Lord Dattatreya. His spiritual teachings are documented in the sacred text Sripada Srivallabha Charitamrutam, he was born in Bhadrapada lunar month during Shukla Paksha Chaturthi which is also the revered tithi worshipped for Lord Ganesh or Vinayak)
Annamacharya - Visagam / Vishakha (Fondly referred to as Annamayya, he was one of the earliest musicians to compose devotional songs in a structured format and widely known as the Grandfather of Telugu song writing. He was born in Vaishakha lunar month during the full moon of Pournami)
Raghavendra Swamy - Mrigaseerisham / Mrigashira (A philosopher of the Dvaita Vedanta tradition known for Mantralayam Brindavanam, he was an expert veena player cum master of the vedas and upanishads, he was born on Phalguna month Shukla Sapthami Tithi on a Thursday)
Guru Nanak - Karthigai / Krithika (Founder of Sikhism and a prophet who transcended the Hindu Muslim divide to proclaim that there is only one God and one Humanity, said to be born on the full moon day in the lunar month of Karthik)
Tulsidas - Moolam / Moola (Known as Sant Goswami Tulsidas, he was a revered poet known for being the author of the iconic Hanuman Chalisa and epic Ramacharitra Manas, he was born in the lunar month of Shravan during Shukla Paksha Sapthami)
Narsinh Mehta - Visagam / Vishakha (Universally referred as the first poet or Adi Kavi of Gujarati language, he penned the iconic hindu devotional hymn 'Vaishnavo Jana To'. He was said to be born in Vaishakha lunar month during the full moon of Pournami)
Rabindranath Tagore - Revathi (Legendary Bengali poet and composer credited with writing national anthem of both India - Jana Gana Mana and Bangladesh - Amar Shonar Bangla. He was also awarded the Nobel Prize in Literature. He was born in Vaishakha month in Krishna Paksha Trayodashi in 1861)
Vallabacharya - Pooratathi / Poorva Bhadrapada (Founded the Pushti Marg which is the path towards the grace of God. Was an ardent devotee of Lord Krishna and said to have worshipped his Srinathji version. Mahaprabhu Vallabacharya was born in Chaitra Lunar month as per Amanta Tradition in Krishna Paksha Ekadashi with his birth said to be coinciding with Varuthini Ekadashi)
Chaitanya Mahaprabhu - Pooram / Poorva Phalguni (Known as Gaura, considered an incarnation of Lord Sri Krishna and was born on the full moon day on Phalguna Poornima)
Nityananda Prabhu - Aayilyam / Ashlesha (Known as Nitai, considered an incarnation of Lord Balarama and was born on Magha Shukla Paksha Trayodashi)
Srila Prabhupada - Mrigaseerisham / Mrigashira (Founder of the Iskcon movement, born on a Tuesday during Krishna Paksha Navami in 1896)
Arunagirinathar - Moolam / Moola (Composed the Thirupugazh in praise of Lord Muruga, was born in Tiruvannamalai on a full moon day in the Tamil month of Aani during Pournami)
Pamban Swamigal - Pooradam / Poorva Ashada (Named originally as Appavu, devoted his life in devotion to Lord Muruga and composed many poems in honour of the Lord. He is believed to have born on Krishna Paksha Sashti in Margazhi tamil month in year 1848)
Shyama Shastri - Karthigai / Krithika (Part of the hallowed trinity of Carnatic music, he was known for his deep devotion towards Goddess Bangaru Kamakshi. He was born in the tamil month of Masi equating to lunar month of Phalguna in Shukla Paksha Sapthami in the year 1763)
Thyagaraja - Poosam / Pushya (Part of the revered trinity of Carnatic music, he was especially known for his songs in veneration of Lord Rama. He was born in the tamil month of Chithirai equating to lunar month of Vaishakha in Shukla Paksha Sapthami in the year 1767)
Muthuswamy Dikshitar - Karthigai / Krithika (The third and youngest of the famous trinity of Carnatic music, he is known especially for his compositions rooted in Sanskrit. He was born in the tamil month of Panguni equating to Lunar month of Chaitra in Shukla Paksha Panchami in the year 1776)
Swathi Tirunal - Swathi (He was the Maharaja of the Kingdom of Travancore and also a composer penning various songs in Hindustani & Carnatic style. He was born in Chaitra month in Krishna Paksha Pratama in the year 1813)
Ramana Maharishi - Punarpoosam / Punarvasu (An enlightened soul and spiritual master known for the Ramana Ashram, he was born on Krishna Paksha Dwitiya during Tamil month of Margazhi in 1879)
Kanchi Mahaperiyava - Anusham / Anuradha (Known as the Sage of Kanchi, he was the 68th Shankaracharya of the Kanchi Kamakoti Peetham, was born on a Sunday in Vaikasi Tamil month in Krishna Paksha Prathama in the year 1894)
Puttabarthi Saibaba - Thiruvadirai / Aarudra (Considered as an influential and globally renowned spiritual leader, Sathya Sai Baba was born in Karthik month during Krishna Paksha Tritiya in 1926)
Srinivasa Ramanujam - Uthiratathi / Uttara Bhadrapada (A mathematical genius known for the infinite series. Goddess Namagiri Thayyar - the consort of Lord Narasimha used to appear in his dream and write complex mathematical formula. He was born in the Tamil month of Margazhi during Shukla Paksha Sapthami on a Thursday in the year 1887)
Ramakrishna Paramahansa - Pooratathi / Poorva Bhadrapada (Taught that the absolute realization of God as the foremost goal of human life and solely believed that all religions lead to the same one god. He was born in the lunar month of Phalguna in Shukla Paksha Dwitiya in the year 1836)
Sri Sarada Devi - Uthiram / Uttara Phalguni (The Holy Mother and spiritual counterpart of Ramakrishna who displayed unconditional love and acceptance of spiritual seekers of all caste and kind. Was born in the lunar month of Margashira in Krishna Paksha Sapthami in the year 1853)
Swami Vivekananda - Hastham / Hastha (He was instrumental in spreading Hinduism to the western world by travelling extensively and known towards dedication of spiritual liberation and humanitarian service. Was born in Pushya lunar month just around the time of Makara Sankranthi in Krishna Paksha Sapthami in the year 1863)
Sri Aurobindo - Moolam / Moola (He was originally educated at Cambridge and encountered a spiritual transformation on account of which he surrendered to the divine power. Known for establishing the Aurobindo Ashram. He was born in Shravana lunar month in Shukla Paksha Ekadashi in the year 1872)
Pondy Mother Mirra Ma - Chithirai / Chitra (Born originally under the name Mirra Alfazza in Paris, France. She forged a partnership with Aurobindo and were considered as a unified force operating in two separate bodies. She was born in Magha lunar month in Krishna Paksha Panchami in the year 1878)
Subramaniya Bharati - Moolam / Moola (Fondly referred to as Mahakavi Bharatiyar, he was a poet cum freedom fighter and social reformer known for his patriotic verses. He was born in the tamil month of Karthigai in Shukla Paksha Pratama in the year 1882)
Subramaniya Siva - Uthiratathi / Uttara Bhadrapada (He was a fiery orator, writer and freedom fighter who worked alongside Bharatiyar. Said to be heavily inspired by Swami Vivekananda and led his life like a sanyasi. He was born in the tamil month of Purattasi in full moon Pournami in 1884)
VO Chidambaram Pillai - Hastham / Hastha (He along with Bharati and Siva were considered the revolutionary trio of Tamil Nadu during Swadeshi movement. He was affectionately known by his initials and titled as Kappalottiya Tamizhan - the Tamil Helmsman. He was born in the tamil month of Avani in Shukla Paksha Tritiya in the year 1872)
Ramalinga Swamigal - Chithirai / Chitra (Also known as Vallalar Siddhar, he was a saint who preached Jeeva Karunyam - compassion towards all living beings. He emphasized worshipping God as 'Arutperunjothi' the supreme light of grace and mentioned 7 veils of illusions namely Maya, Kriya, Para, Ichcha, Gnana, Adhi and Ananda Shakti represented by 7 colors. He is normally worshipped on Pushya Nakshatra days due to his spiritual ascension into divine light and guru like presence. He was born in the Tamil month of Purattasi in Shukla Paksha Dwitiya on a Sunday in the year 1823)
Narayana Guru - Sadayam / Satabhisha (A philosopher, spiritual leader and reformer from Kerala, he advocated the phrase "Oru Jathi, Oru Matham, Oru Daivam Manushyanu" meaning One Caste, One Religion, One God for All. He was born in the Malayalam month of Chingam equating to Tamil month of Avani in Krishna Paksha Prathama in the year 1855)
Chattampi Swamigal - Bharani (One of the prominent and most worshipped spiritual leaders, he was a close contemporary of Narayana Guru. He reformed the heavily ritualistic and caste ridden society of 19th century Kerala. He was born in the Malayalam month of Chingam equating to Tamil month of Avani in Krishna Paksha Saptami in the year 1853)
Raja Ram Mohan Roy - Tiruvonam / Shravana (He was the founder of the Brahmo Samaj, a reform movement aimed at purging Hinduism from Orthodox traditions. Is widely known as the Father of Modern India and vividly celebrated as the Father of the Indian Renaissance. He was born in the lunar month of Vaishakha in Krishna Paksha Sashti in the year 1772)
Swami Dayananda Saraswathi - Moolam / Moola (He was known for founding the Arya Samaj and was an ascetic cum social reformer. He was born in Magha lunar month as per Amanta or Phalguna lunar month as per Purnimanta tradition in Krishna Paksha Dasami in the year 1824)
Swami Chinmayananda Saraswathi - Poosam / Pushya (He was known for founding the Chinmaya Mission and was a teacher of Advaita Vedanta focusing majorly on the Upanishads and Bhagavad Gita. He was originally born as Balakrishna Menon in Kerala in the Vaishaka lunar month in Shukla Paksha Sashti in the year 1916) 
Ishwar Chandra Vidyasagar - Karthigai / Krithika (Born as Ishwar Chandra Bandyopadhyay, he was a renowned polymath, educator, philosopher, and philanthropist. Was instrumental in passing the Hindu Widows Remarriage Act of 1856. He was born in Bhadrapada lunar month in Krishna Paksha Panchami in the year 1820)
Lahiri Mahasaya - Thiruvadhirai / Aarudra (A great Yoga master known for teaching Kriya Yoga. He was born in Bhadrapada lunar month in Krishna Paksha Sapthami in the year 1828)
Sri Yuktheshwar Giri - Sadayam / Satabhisha (He was a disciple of Lahiri Mahasaya and attained the spiritual stature of a Jnana avatar. He was born on Vaishaka lunar month in Krishna Paksha Navami in the year 1855)
Paramahansa Yogananda - Magam / Magha (Indian Yogi who introduced Kriya Yoga and self realization to the west and was the author of the spiritual classic "Autobiography of a Yogi" and disciple of Yuktheshwar. He was born on Pushya lunar month in Krishna Paksha Chaturthi in the year 1893)
Jiddu Krishnamurthy - Moolam / Moola (Was an influential philosopher, speaker and writer. He was named after Shri Krishna as he was the 8th born child similar to the Lord. He was born on Vaishak lunar month in Krishna Paksha Tritiya in the year 1895)
Neem Karoli Baba - Sadayam / Satabhisha (Considered a spiritual master, yogi and humanitarian saint and well revered as a literal avatar of Lord Hanuman. He was born on Margashira lunar month in Shukla Paksha Ashtami in the year 1900)
Sri Anandamayi Maa - Kettai / Jyeshta (Born as Nirmala Devi, she is celebrated as the joy permeated mother and considered to be a mystic, saint and spiritual teacher. She was born in Kheora which is part of current day Bangladesh in Vaishak lunar month in Krishna Paksha Tritiya in the year 1896) 
MS Subbhalakshmi - Bharani (First musician ever to be awarded the highest civilian honour of Bharat Ratna and also the first classical musician to perform at the United Nations General Assembly Hall at New York in 1966. Considered the epitome of singing especially when it came to devotional numbers, she was born on Bhadrapada Lunar month in Krishna Paksha Panchami in the year 1916)
Note: The information on the 'Thiru Nakshatra' which is the Janma Nakshatra of divine beings is as accurate as possible. There were some cases where more than one Nakshatras were referenced but have taken the most authentic one. For some historical names like Nimbarkacharya, Purandaradasa, Mahatvar Babaji, Mirabai, Shirdi Saibaba etc the year of birth itself appeared to have skepticisms and hence their names have not been recorded in the above list. Information on Tithi follows the Amanta tradition where a lunar month runs from Shukla Paksha Pratama and culminates in Ammavasya unless specifically mentioned as Pournimanta wherein which a month begins at Krishna Paksha Pratama and concludes in Pournima.

From some of the prominent names listed above, documenting additional information on 3 sets of Trinities consisting of the 3 well known philosophers of the Vedanta Tradition, the 3 musical saints who exhibited their devotion in full force through their outstanding compositions in deference of the higher beings and the Holy Trinity whose collective philosophy rested on the four foundational pillars.

Philosophers of Vedanta Tradition
The 3 main philosophers happen to be Adi Shankaracharya, Ramanujacharya and Madhavacharya. They all lived during different time periods and belonged to the Southern states of Kerala, Tamil Nadu and Karnataka respectively. They all had different ideologies but the shared link happens to be their common thesis of spirituality, devotion and praise of the Lord. Adi Shankaracharya propagated Advaita Vedanta or absolute non duality meaning the individual soul and ultimate reality are both one and the same. Ramanujacharya's philosophy was Vishishtadvaita Vedanta or qualified non duality advocating that the the relationship between God and individuals is like that of a soul and body. It was described like a Part and Whole relationship with the Lord being the 'whole' and devotee being a 'part' of that 'whole'. Madhavacharya on the other hand practiced Dvaita Vedanta translating to God and the Devotee being completely separate and distinct realities. His standpoint was that God was from a higher reality and perfect whereas the individual taking birth is imperfect and the way to reach the Lord is through service and prayers. The birth detail of Ramanujacharya has already been touched underneath the section of the Alvars. The birth tithi and month of both Adi Shankaracharya and Ramanujachacharya are said to be one and the same. Madhavacharya was said to be born on the auspicious day of Vijaya Dasami or Dussehra. Lets document the birth details of these 3 great philosophers.

- Adi Shankaracharya – Vaishakha Shukla Paksha Panchami – Punarpoosam / Punarvasu
- Ramanujacharya – Vaishakha Shukla Paksha Panchami – Thiruvadhirai / Aarudra
- Madhavacharya – Ashwin Shukla Paksha Dasami – Tiruvonam / Shravana
                             
Musical Saints or Trinity of Carnatic Music
The 3 musical saints or the Trinity of Carnatic Music as they are fondly called were all incidentally born in the sacred temple town of Thiruvarur in Tamil Nadu just few years apart from each other with all of them taking birth in the latter half of the 18th century. Shyama Shastry happens to be the oldest of the 3 and known extensively for his worship of Goddess Bangaru Kamakshi. He is known for creating "Navaratnamalika" - a 9 jeweled musical piece praising the famed Goddess Meenakshi from Madurai. Saint Thyagaraja was an avid bhakta of Lord Rama composing numerous musical garlands in dedication of the Lord and is majorly known for 'Pancha Ratna Kritis' based on 5 Ragas Naatai, Gowlai, Arabhi, Varali and Sri and this forms the core of the Thyagaraja Aaradhanai festival held every year where plethora of musicians come together in mass to render his masterpiece during a 5 day window with the celebrations ending in the lunar month of Pushya on the 5th waning Tithi of Panchami coined as Pushya Bahula Panchami. Muthuswamy Dikshitar was the youngest in the Trinity and has a close affiliation to Lord Murugan and said to be named after the deity 'Muthukumaraswamy' as his parents prayed for a child at the Vaitheeswaran temple. He is believed to have composed at many temples as part of his pilgrimage such as Thiruthani, Kanchi, Thiruvannamalai, Chidambaram, Tirupathi and Kalahasthi. He was very proficient in the instrument veena and his songs are known to have a strong Gamaka style consisting of turns, curves and blends. He was also known by his signature name of 'Guruguha' which is said to be his musical signature. Is most widely known for his work on the "Kamalamba Navavarna Kritis" in honour of Goddess Kamalamba comprising 11 tracks inclusive of 9 compositions, an introductory piece and a concluding close. Lets reference the birth details of these 3 great musical saints.

- Shyama Shastri – Masi – Karthigai / Krithika
- Thyagaraja – Chithirai – Poosam / Pushya
- Muthuswamy Dikshitar – Panguni – Karthigai / Krithika
                               
The Holy Trinity
The 19th century witnessed the birth of the Holy Trinity comprising of Ramakrishna Paramahansa, his spouse Sri Sarada Devi and their most devoted disciple Swami Vivekananda. Ramakrishna Paramahansa taught that the absolute realization of God as the foremost goal of human life and solely believed that all religions lead to the same one god. Sri Sarada Devi was known as the Holy Mother and spiritual counterpart of Ramakrishna. She displayed unconditional love and acceptance of spiritual seekers of all caste and kind. Vivekananda was instrumental in spreading Hinduism to the western world. He travelled extensively and known towards dedication of spiritual liberation and humanitarian service. Collectively their fundamental philosophy rested on the four pillars viz i) Yato Mat Tato Pat - translated as integrating and harmony of religion, ii) identifying service as worship equating it as serving humanity being the highest form of spiritual practice, iii) advocating the four yogas viz Jnana Yoga - path of knowledge, Bhakti Yoga - path of devotion, Karma Yoga - path of selfless action and Raja Yoga - path of meditative control and iv) practising complete empowerment and inclusivity. They are also known for many inspiring quotes highlighting the essence of their philosophy. Lets index the birth details of these 3 respected souls of the Holy Trinity.

- Ramakrishna Paramahansa – Masi – Pooratathi / Poorva Bhadrapada
- Sri Sarada Devi – Margazhi – Uthiram / Uttara Phalguni
- Swami Vivekananda – Margazhi – Hastham / Hastha

Pranava Manthiram - Vaikasi Visakam

Lord Murugan is believed to have manifested from the Third Eye of Lord Shiva & Parvathi in the solar month of Vaikasi with the Nakshatra of Vishakha visible in the skies and when the full moon (Pournima) was in operation. He is connected especially to the number 6 since he was incarnated as 6 divine sparks to destroy the three demon brothers Soorapadman, Singamuhan & Tarakan thus bringing balance and restoring parity to motherland. The 6 faces of the Lord represent mastery over Anger, Attachment, Desire, Ego, Greed and Jealousy. Thus prayers offered to the Lord help sharpen the mind and control the senses. There are also 6 famous abodes dedicated to Lord Arumugam at Thiruparankundram, Tiruchendur, Palani, Swamimalai, Tiruttani and Pazhamudircholai. Adding further, the sacred mantra of Sage Agasthya 'Sa Ra Va Na Ba Va' also comprises of six syllables known for curing illnesses and granting positive health.

Other than Vishakha or Visagam which is considered to be his birth star ruled by Indragni ('Indra+Agni') he is strongly affiliated to Krithika (Karthigai) star ruled by the God of Fire 'Agni' and also Pushya (Poosam) star ruled by the God of Wisdom 'Guru'. The Krithika star also has reference because it is believed that the Lord as an infant was nurtured by the 6 Krithika Maidens thus also garnering him the moniker of 'Kartikeya'. Skanda is also connected to the star of Uttara Phalguni (Uthiram) as that was the Nakshatra which was in occurence during his divine marriage to 'Deivanai', the daughter of the Chief of Gods 'Indra'.

The Navagraha Mars is also associated with Deva Senapathi and so is the Vara of Tuesday (Chevva Kizhamai) which is specifically ruled by the planet Mars. Mars is known for the significations of Victory & War and hence appeasing Lord Kumara helps in overcoming and winning your battles both inwardly and outwardly. For those afflicted with Mars Dosha, seeking refuge to Subramanya can act as a great counter relieving measure. The symbol 'Vel' or spear is used as his primary divine weapon to conquer and emerge victorious in tandem with also denoting wisdom and being wise.

As alluded earlier about #6, the sixth Tithi of both the waxing & waning phase viz 'Shasti' is connected to Lord Shanmuga. Also the Karana 'Vishti' linked with the animal cock is ruled by Saravana. The other animal connected largely to the Lord is the Peacock which he rides known as 'Paravani' symbolising destruction of pride & ego. The Yoga of 'Siddha' formed in association of the combined degree longitude of the Sun & Moon is also ruled by Velava.

On this divine birthday of the 'Lord of Everything' on Vaigasi Visagam, playing a small portion of a lullaby 'Pranava Manthiram' associated with Lord Guhan denoting the softer side of our all encompassing almighty Tamil Kadavul. May his name be ever chanted and get resonated with pride. Let the belief be steadfast and ever faithful.

Jai Sri Ram!

Lord Rama is believed to have descended on earth by being born to King Dasharath and Queen Kausalya eons of years ago around the afternoon time at Abhijit Muhurtha in the luni solar month of Chaitra during the waxing phase of Moon in Shukla Paksha Navami Tithi aligned with Punarvasu Nakshatra transiting in the skies. It was a birth embellished with brightness and radiance all round with 5 of the Navagrahas being exalted viz Sun in Aries, Jupiter in Cancer, Saturn in Libra, Mars in Capricorn and Venus in Pisces. And to accentuate, the Moon is stationed in it's own sign of Cancer along with the rising ascendant sign. The incarnation of Rama is said to have occurred directly from the Sun God and the Lord is the seventh avatar of Maha Vishnu.

Rama's attributes signify valour, virtue, duty, dedication, commitment, faith, sacrifice, righteousness and a host of other dignified and distinguished traits. He symbolises the perfect example of how a human being should lead a life thus attaining the apt title of 'Maryada Purushottama'. He is revered as a super hero for his steadfast discipline and strongly oriented principles. He is a God of ideals bestowing kindness and benevolence to mankind.

On this special birth anniversary when the entire nation celebrates his divine personification, a small labour of love from my side in attempting to play a few lines from some of his lilting bhajans extolling effusiveness of his enshrined embodiment. There is an extra inkling and special liking towards Lord Rama hymns as I usually find them to be divine, pious and aurally pleasing. Also to add, personally blessed to have the privilege of sharing the Lord's birth Nakshatra of Punarpoosam/Punarvasu/Punartham. The strived pieces include:

- Raghupathi Raghava

- Ramachandraya Janaka

- Sri Ramachandra Kripala

- Shuddha Brahma Paratpara Ram

- Sri Rama Rama Ramethi (Vishnu Sahasranamam)

Let generations to come continue to celebrate Lord Rama with fervour and fanfare till the end of eternity. May his grace and generosity be prevalent to everyone and wishing for peace to prevail and emerge at the forefront for the world at large. Genuflections to our Great God on his extra special Birthday. Jai Sri Ram!

The Siddhars, Rishis and their connection with Nakshatras & Navagrahas

A Sage from a layman's language can said to be enlightened and elevated mystical beings possessing intense spiritual powers. They are said to have lived during the times of the Gods and hold supernatural abilities on account of undertaking deep spiritual penance. They can almost be reckoned to be an equivalent form of God just that they are not as widely reverent and don't have the adulation that the divine commands in places of worship. A Sage can also be termed by other names such as Rishi/Siddhar/Munivar/Seer etc. Sages in general are known to have made uncharted progress in fields such as Medicine, Science, Alchemy, Astronomy, Astrology, Manuscripts, Fine Arts like Literature, Music, Dance, Drama, Artistry, Sculpture etc. They have transcended across time & space and many of the Sages are said to have lived on the earthly realm across yugas spanning far upwards of more than 1000 years.

In the Tamil Siddha tradition, 18 sages are mentioned as prominent and are said to have lived during the times of the Gods dating way back to the time when the epics Ramayana & Mahabharatha were scripted. There are some minor differences with regard to the lists but sharing below the most prominent 18 Siddhars mentioned in scriptures

1) Agathiyar
2) Patanjali
3) Thirumoolar
4) Kamalamuni
5) Kudambai
6) Korakkar
7) Dhanvantri
8) Sundaranathar
9) Konganar
10) Sattaimuni
11) Valmiki
12) Ramadevar
13) Agapeyar
14) Idaikadhar
15) Machamuni
16) Karuvurar
17) Bhogar
18) Pambatti

Other than these 18 Siddhars, some lists tend to specify few other names of Siddhars by replacing a few from the above list. Some names missing from the above roster includes Kaga Bhujandar, Pulippani, Kalangi Nathar, Nandi Devar, Kanjamalai, Sennimalai, Punnakesar, Azhugunar, Theraiyar, Pulastya etc. Among the 18 Siddhars, Agathiyar is said to be the foremost figure of them all and considered as the Father of Siddha tradition.

18 Siddhars Birth Information
There are some additional information related to the above 18 Siddhars pertaining to the Nakshatra in operation when they were born, solar month at birth, their total life span and also the place of Jeeva Samadhi. Lets look at this information for all of the above sages.

1) Agathiyar (aka Agasthya)
Nakshatra at Birth: Ayilyam (Ashlesha)
Solar Month: Margazhi (Approx mid December to mid January)
Life Span: 4 Yugas & 48 Days
Jeeva Samadhi: Tiruvananthapuram
Information: Considered as the father of tamil literature and pioneer of Siddha medicine. Authored 'Agattiyam', an early Tamil Grammar treatise and Sanskrit works like Agastya Gita & Agastya Samhita.

2) Patanjali
Nakshatra at Birth: Moolam (Moola)
Solar Month: Panguni (Approx mid March to mid April)
Life Span: 5 Yugas & 7 Days
Jeeva Samadhi: Rameshwaram
Information: Authored many yogic texts including compilation of Yoga Sutra. Considered as an incarnation of Serpent Adishesha and made major strides in the field of Yoga.

3) Thirumoolar (aka Sundaranathar)
Nakshatra at Birth: Avittam (Dhanishta)
Solar Month: Purattasi (Approx mid September to mid October)
Life Span: 3000 Years & 13 Days
Jeeva Samadhi: Rameshwaram
Information: Author of “Thirumandiram” a spiritual classic merging yogic, philosophical, and Siddha principles. He is also considered as one of the 63 Nayanmars.

4) Kamalamuni
Nakshatra at Birth: Poosam (Pushya)
Solar Month: Vaigasi (Approx mid April to mid May)
Life Span: 4000 Years & 48 Days
Jeeva Samadhi: Thiruvarur
Information: Said to be a renowned disciple of Sage Thirumoolar. Known for spreading Siddha tradition widely

5) Kudambai
Nakshatra at Birth: Visagam (Vishakha)
Solar Month: Aadi (Approx mid July to mid August)
Life Span: 1800 Years & 16 Days
Jeeva Samadhi: Mayavaram
Information: Known for spiritual insights and Kundalini yoga. He was named as Kudambai (meaning a woman's ear ornament) due to his beauty

6) Korakkar (aka Gorakhnath)
Nakshatra at Birth: Ayilyam (Ashlesha)
Solar Month: Karthigai (Approx mid April to mid May)
Life Span: 880 Years & 11 Days
Jeeva Samadhi: Perur
Information: Known as a disciple of prominent sages such as Agasthya and Bhogar. Known for the art of telepathy and rejuvenation

7) Dhanvantri
Nakshatra at Birth: Punarpoosam (Punarvasu)
Solar Month: Aipasi (Approx mid October to mid November)
Life Span: 800 Years & 32 Days
Jeeva Samadhi: Vaitheeswaran Kovil
Information: Considered as the physician of the Gods and also an avatar of Lord Vishnu. Known for healing and medicinal properties

8) Sundaranandhar
Nakshatra at Birth: Revathi (Revathi)
Solar Month: Avani (Approx mid August to mid September)
Life Span: 800 Years & 28 Days
Jeeva Samadhi: Madurai
Information: Said to be a disciple of Sage Sattaimuni. It is said that he obtained the Siva Linga of Sage Agasthya, placed it at Saduragiri and worshipped it

9) Konganar
Nakshatra at Birth: Uthiradam (Uttara Ashada)
Solar Month: Chithirai (Approx mid April to mid May)
Life Span: 800 Years & 16 Days
Jeeva Samadhi: Thirupathi
Information: Said to be a disciple of Sage Bhogar. He mastered Siddha medicine and known for spiritual wisdom.

10) Sattaimuni
Nakshatra at Birth: Mrigaseerisham (Mrigashira)
Solar Month: Avani (Approx mid August to mid September)
Life Span: 800 Years & 14 Days
Jeeva Samadhi: Thiruvarangam
Information: Named as Sattaimuni (Sattai means shirt) because of a woolen shirt provided by Lord Shiva. Known for mastery in alchemy, astrology and medicine.

11) Valmiki (aka Vaalmeegar)
Nakshatra at Birth: Anusham (Anuradha)
Solar Month: Purattasi (Approx mid September to mid October)
Life Span: 700 Years & 32 Days
Jeeva Samadhi: Ettukudi
Information: Is revered as the Adi Kavi and is the author of one of the greatest epics "The Ramayana", Known for spiritual enlightenment and wisdom.

12) Ramadevar
Nakshatra at Birth: Pooram (Poorva Phalguni)
Solar Month: Maasi (Approx mid February to mid March)
Life Span: 700 Years & 6 Days
Jeeva Samadhi: Azhagarmalai
Information: Known as disciple of Sage Patanjali, made major initiations in the field of herbs and medicinal properties.

13) Agapeyar
Nakshatra at Birth: Mrigaseerisham (Mrigashira)
Solar Month: Panguni (Approx mid March to mid April)
Life Span: 700 Years
Jeeva Samadhi: Manavalanallur
Information: Known for using the mind as a ghost to guide people towards realisation. Is revered for his devotional songs on philosophy.

14) Idaikadhar
Nakshatra at Birth: Thiruvadirai (Arudra)
Solar Month: Purattasi (Approx mid September to mid October)
Life Span: 600 Years & 18 Days
Jeeva Samadhi: Thiruvannamalai
Information: Prominent for rearranging Navagrahas in order to stop a long time famine. Said to be an expert in astrology with his calculations being used in Panchangam

15) Machamuni (aka Matsyendranath)
Nakshatra at Birth: Rohini (Rohini)
Solar Month: Aadi (Approx mid July to mid August)
Life Span: 300 Years & 62 Days
Jeeva Samadhi: Thiruparankundram
Information: He is reckoned as the Fish Sage. Known for being a master of Kundalini awakening, meditation and Siddha medicine

16) Karuvurar
Nakshatra at Birth: Hastham (Hastha)
Solar Month: Chithirai (Approx mid April to mid May)
Life Span: 300 Years & 42 Days
Jeeva Samadhi: Karur
Information: Known as a disciple of Bhogar. Said to be a master alchemist and connected with herbal medicines

17) Bhogar
Nakshatra at Birth: Bharani (Bharani)
Solar Month: Vaigasi (Approx mid May to mid June)
Life Span: 300 Years & 18 Days
Jeeva Samadhi: Palani
Information: Responsible for installing the Navapashanam idol of Lord Muruga at Palani. Known widely for his works in China and said to be a pioneer in the field of medicine, yoga, spirituality.

18) Pambatti
Nakshatra at Birth: Mrigaseerisham (Mrigashira)
Solar Month: Karthigai (Approx mid April to mid May)
Life Span: 123 Years & 14 Days
Jeeva Samadhi: Shankaran Kovil
Information: Known as the snake charmer based on his name. He is widely known for his Kundalini energies and knowledge of various herbs and medicines.

From the above list, it is worth noting that only Sage Agasthya and Sage Patanjali's life span spreading across Yugas whereas all other Siddhar's life time spanning in the range from centuries to thousands of years. However the Sage who's believed to have the highest lifespan of all is Siddhar Kaga Bhujandar who is believed to have lived for millions of years across multiple cycles of creation and destruction. He is said to lived in the form of a crow and gets his name from 'Kagam' which translates as Crow in Tamil. He is termed as the "Immortal Sage" due to his perpetual timeline. Sage Kaga Bhujandar is believed to have given instructions to Sage Vasishta and obtained initiation from Lord Shiva in multiple eras.  

Nakshatra Connection of the Siddhars
Apart from these hallowed 18 Siddhars of the South, each of the 27 Nakshatras are also said to be associated with a Siddhar and in selective cases even 2 Siddhars. It is interesting to note that majority of these 18 fall as part of the Nakshatra list but since the Number of Nakshatras (27) are more than the prominent Siddhars of the South (supposedly 18), you will find few additional well respected Siddhars having born in particular Nakshatras and invoking them is said to be beneficial. Lets now look at all the Nakshatras and the Sages connected to them.

1) Ashwini - Kalangi Nathar
2) Bharani - Bhogar
3) Karthigai (Krithika) - Romarishi
4) Rohini - Machamuni (aka Matsyendranath)
5) Mrigaseerisham (Mrigashira) - Pambatti & Sattaimuni
6) Thiruvadirai (Arudra) - Idaikadhar
7) Punarpoosam (Punarvasu) - Dhanvantri
8) Poosam (Pushya) - Kamalamuni
9) Ayilyam (Ashlesha) - Agathiyar (aka Agasthya)
10) Magam (Magha) - Siva Vakiyar
11) Pooram (Poorva Phalguni) - Rama Devar (aka Yakobu)
12) Uthiram (Uttara Phalguni) - Kaga Bhujandar
13) Hastham (Hastha) - Karuvurar
14) Chithirai (Chitra) - Punakeesar
15) Swathi - Pulippani
16) Visagam (Vishakha) - Nandeeswarar (aka Nandi Devar) & Kudambai
17) Anusham (Anuradha) - Valmiki (aka Vaanmeekar)
18) Kettai (Jyeshta) - Vyasa
19) Moolam (Moola) - Patanjali
20) Pooradam (Poorva Ashada) - Rama Devar (aka Yakobu)
21) Uthiradam (Uttara Ashada) - Konganar
22) Thiruvonam (Shravana) - Dakshina Murthy
23) Avittam (Dhanishta) - Thirumoolar (aka Sundaranathar)
24) Sadayam (Shatabisha) - Kowbalar
25) Pooratathi (Poorva Bhadrapada) - Jyoti Muni
26) Uttirattathi (Uttara Bhadrapada) - Damaragar
27) Revathi - Sundara Nandhar

Thus, if one observes from the above list, each of the Nakshatra's are associated with at least one siddhar but in case of 2 of the Nakshatras viz Mrigaseerisham (Mrigashira) and Visagam (Vishakha), 2 Siddhars are casted along side them. Also for both Pooram (Poorva Phalguni) and Pooradam (Poorva Ashada) - the same Siddhar Rama Devar is provided for both. Though technically it has to be noted that Rama Devar also belongs as part of the 18 Siddhars and was said to have taken birth in Pooram (Poorva Phalguni) Nakshatra only. It could be that since Pooradam (Poorva Ashada) doesn't have a singular sage, Rama Devar is linked to it. The reason could also be that its the 10th Nakshatra from Pooram indicated as Karma Nakshatra as per the holy astrological text Kumaraswamiyam. Pooram also sometimes takes into account Sri Andal - the divine poet saint (Alwar) from Vishnu clan but however Andal cannot distinctively be equated to a Sage and hence may not be considered in this Sages list. Among the 18 Siddhars provided on top, some of them don't find their way in the Nakshatra list. For instance Korakkar Siddhar was born in Ayilyam (Ashlesha) but he is not linked directly to this star and only Agathiyar is linked. Similar is the case of Agapeyar Siddhar who also could technically be considered as a Sage to worship for Mrigaseerisham (Mriga) born natives.

Nakshatra relation to the Rishis
There is also believed to be a Nakshatra related with a particular Rishi. There are no repetitions here and each of the Nakshatras including Abhijit has one Rishi linked to its constellation. Thus praying to one's Rishi in relation to their birth star can be beneficial. This is most probably derived from Gothra or lineage of a Rishi connected to a particular Nakshatra. The names here are very different from the Nakshatras connected with Siddhars. In fact from the list of Siddhars, only Agasthya Munivar sees a mention in this list as well though he is connected to a different Nakshatra as per the lineage. Listing below the Rishis for all the 28 Nakshatras including the intercalary star of Abhijit.

1) Ashwini - Katyayana
2) Bharani - Rishibadhanya
3) Karthigai (Krithika) - Agnivesha
4) Rohini - Anurohi
5) Mrigaseerisham (Mrigashira) - Swethayi
6) Thiruvadirai (Arudra) - Bhargava
7) Punarpoosam (Punarvasu) - Vatsyayana
8) Poosam (Pushya) - Bharadwaja
9) Ayilyam (Ashlesha) - Jatukarna
10) Magam (Magha) - Vyaghrapada
11) Pooram (Poorva Phalguni) - Parashara
12) Uthiram (Uttara Phalguni) - Upashiva
13) Hastham (Hastha) - Mandavya
14) Chithirai (Chitra) - Gauthama
15) Swathi - Kaundinya
16) Visagam (Vishakha) - Kapi
17) Anusham (Anuradha) - Maitreya
18) Kettai (Jyeshta) - Kaushika
19) Moolam (Moola) - Kutsa
20) Pooradam (Poorva Ashada) - Haritha
21) Uthiradam (Uttara Ashada) - Kashyapa
22) Abhijit - Saunaka
23) Thiruvonam (Shravana) - Atri
24) Avittam (Dhanishta) - Garga
25) Sadayam (Shatabisha) - Dakshayana
26) Pooratathi (Poorva Bhadrapada) - Vatsa
27) Uttirattathi (Uttara Bhadrapada) - Agasthya
28) Revathi - Sankyayana

Siddhars associated with the Navagrahas
Other than the renowned 18 Siddhars, there is another list of 18 Siddhars representing the Navagrahas with each of the 9 planets being provided 2 Siddhars each. Lets take a look at the Siddhars for each planet.

Sun - Pattinathar, Kaduveli
Moon - Siva Vakiyar, Kambili
Mars - Bhogar, Pulippani
Mercury - Vallalar, Idaikadhar
Jupiter - Kaga Bhujandhar, Agapeyar
Venus - Kanjamalai, Sennimalai
Saturn - Kapilar, Karuvurar
Rahu - Alugunar, Pambatti
Ketu - Sattaimuni, Kudambai

Saptharishis
Apart from the 18 hallowed Siddhars from South, there is also a Rishi tradition termed as 'Saptharishis' known as the 7 divine sages of Hinduism. They are said to be seers embodying divine wisdom and cosmic order. The names of these Rishis keep changing across different cosmic cycles. As per the current age in existence, the 7 Rishis are listed as below:

- Atri
- Bharadwaja
- Gautama
- Jamadagni
- Kashyapa
- Vasishta
- Vishwamitra

A Manvantara is a cyclic period of time consisting of 71 Maha Yugas. There is said to be a total of 14 Manvantaras and currently the 7th Manvantara termed as Vaivasvata Manvantara is in operation. The first ever creation cycle known as the Svayambhuva Manvantara lists the Saptharishis as Atri, Angiras, Kratu, Marichi, Pulaha, Pulastya and Vasishta. Few other renowned Sages who have been part of Saptharishis as per different Manvantaras include Bhrigu, Kutsa, Gungu etc. There is also the name of Sage Agasthya in some lists of the Saptharishis.

Agasthya & Vasishta Connection
It is difficult to say who the most prominent Sage of the Saptharishis is in similar lines to Sage Agasthya's reverence among the 18 Siddhars. However it is to be noted that among the Saptharishis across most of the lists tend to have Maharishi Vasishta as probably the most notable Rishi. Incidentally Sage Agasthya and Sage Vasishta are also considered to be twin brothers as per Hindu Mythology having born from the semen of the deities Mitra and Varuna. There is also a reference in Yoga Vasishta that Sage Vasishta was born for the 8th time in this particular era. There is not much information on birth details of the Saptharishis as compared to the Siddhars but however it is believed that Rishi Vasishta was born in the lunar month of Vaisakh in Shukla Paksha Navami Tithi which is believed  to be the same Tithi as that of his disciple Lord Rama. Another revered Rishi connected closely to Vasishta viz Brahmarishi Vishwamitra is said to be have been born in the lunar month of Karthik during the waxing phase of the Moon in Tritiya Tithi.

Vasishta's Ancestral History and Linkage with Other Sages
The Puranas state Sage Vasishta to be one of the mind born sons of Lord Brahma. Vasishta along with his consort Arundathi are mentioned to have given birth to Maharishi Shakti who has been referred to in the epic Mahabharat. Sage Shakti subsequently gave birth to Maharishi Parashara who is well known as the author of many hindu texts and considered a father figure of Astrology having written the eternal classic "Brihat Parashara Hora Shastra". From Parashara, was born Maharishi Vyasa who is traditionally credited to being the author of the greatest epic "Mahabharat". From Vyasa was born Maharishi Sukar in the form of a parrot face who is recognised as the foremost narrator of the scripture "Bhagavata Purana".

Inset Left to Right: Lord Brahma -> Sage Vasishta -> Sage Shakti -> Sage Parashara -> Sage Vyasa -> Sage Sukar

Sanakadi Munis (Four Kumaras) and the Association with Lord Brahma & Guru Dakshinamurthy
Speaking of Lord Brahma and mind born sons, there are also 4 other mind born sons created by Brahma whose names are Sanaka, Sanandana, Sanatana and Sanat Kumara. They are commonly termed as the Four Kumaras and also known as Sanakadi Rishis. They are described as the first ever mind born creations and believed to have undertaken lifelong celibacy with their purpose being forever learning and being in the spiritual realm through devotional services with no desire whatsoever towards anything materialistic. In many iconographies, you would see these 4 Sages being under the tutelage of Lord Dakshinamurthy to seek the ultimate truth and get imparted with supreme knowledge.

Janma Nakshatra of the Saptharishis and the Great Bear Constellation
Unlike the 18 Siddhars of the South who are all associated with a specific Nakshatra in which they are born, there is no explicit mention of the Birth Nakshatra of the Saptharishis. There is however a connection with the constellation of Great Bear also known as Ursa Major forming 7 bright stars in the Sky known as the Big Dipper. Sage Vasishta is linked to the star of 'Mizar' and his consort Arundhati is connected to the nearby star of 'Alcor'. They are said to be double stars bonded together and is said to represent closeness, loyalty and harmony. In Hindu tradition, Vasishta & Arundhati are seen as a perfect couple from a marriage perspective embodying respect, devotion and marital bliss. The 7 star names as part of the Big Dipper comprise of Alkaid, Mizar, Alioth, Megrez, Phecda, Merak and Dubhe. Mizar & Alcor are said to be tied together. However it should be noted that these stars belonging as part of the Big Dipper do not exactly correspond to the Hinduism structure of 27 Nakshatras (or 28 inclusive of Abhijit).

Nakshatra Saptharishi Lineage
The only direct reference to Nakshatras is for one set of the Saptharishis where the 28 Nakshatras are assigned as 4 each among the Saptharishis. This is more in line with saying that one born in a particular Nakshatra will be coming under the lineage of that Rishi. Let's look at the list of the Nakshatras and the Kula Gothra Rishi associated with it. 

-> Ashwini, Poosam (Pushya), Swathi, Abhijit - Rishi Marici
-> Bharani, Ayilyam (Ashlesha), Visagam (Vishakha), Thiruvonam (Shravana) - Rishi Vasishta
-> Karthika (Krithika), Magam (Magha), Anusham (Anuradha), Avittam (Dhanishta) - Rishi Angiras
-> Rohini, Pooram (Poorva Phalguni), Kettai (Jyeshta), Sadayam (Satabisha) - Rishi Atri
-> Mrigaseerisham (Mrigashira), Uthiram (Uttara Phalguni), Moolam (Moola), Pooratathi (Poorva Bhadrapada) - Rishi Pulastya
-> Thiruvadirai (Arudra), Hastham (Hastha), Pooradam (Poorva Ashada), Uthirattathi (Uttara Bhadrapada) - Rishi Pulaha
-> Punarpoosam (Punarvasu), Chithirai (Chitra), Uthiradam (Uttara Ashada), Revathi - Rishi Kratu

Siddhar Mantra
There is also a Mantra which is beneficial to be chanted when worshipping the Siddhar of one's Janma Nakshatra. This needs to be done with devotion reverencing your respective Siddhar thinking of the task and reciting it for 48 days at a stretch for 108 times. The Mantra goes as follows consisting of the Bheeja Aksharam as "Om Sing Rang Ang Sing" / "ஓம் சிங் ரங் அங் சிங்"

Nakshatra Siddhar Information
Summarising list of all the 27 Nakshatras connected with the respective Siddhars along with images and information on their Jeeva Samadhi location.

Ashwini:
Siddhar: Kalangi Nathar
Jeeva Samadhi: Kanchamalai and Thirukadaiyur

Bharani:
Siddhar: Bhogar
Jeeva Samadhi: Pazhani

Karthigai (Krithika):
Siddhar: Romarishi
Jeeva Samadhi: No Samadhi, it is believed he directly ascended to Kailash. It is suggested to worship him on Mondays by being seated in North direction and offering sweet jaggery 

Rohini:
Siddhar: Machamuni (aka Matsyendranath)
Jeeva Samadhi: Thiruparankundram

Mrigaseerisham (Mrigashira)
Siddhar: Pambatti & Sattaimuni (aka Sattainathar)
Jeeva Samadhi: For Pambatti it is Sankaran Kovil and Sattaimuni it is Thiruvarangam

Thiruvadirai (Arudra)
Siddhar: Idaikadhar
Jeeva Samadhi: Thiruvannamalai

Punarpoosam (Punarvasu)
Siddhar: Dhanvantri
Jeeva Samadhi: Vaitheeswaran Kovil

Poosam (Pushya)
Siddhar: Kamalamuni
Jeeva Samadhi: Thiruvarur

Ayilyam (Ashlesha)
Siddhar: Agathiyar (aka Agasthya)
Jeeva Samadhi: Thiruvananthapuram. His glow of light (Oli Vattam) is said to be in Podhigai Mazhai at Kutralam

Magam (Magha)
Siddhar: Siva Vaakiyar 
Jeeva Samadhi: Kumbakonam

Pooram (Poorva Phalguni)
Siddhar: Ramadevar 
Jeeva Samadhi: Azhagar Malai. There is also a Samadhi believed to be in Mecca, Saudi Arabia

Uthiram (Uttara Phalguni)
Siddhar: Kaga Bhujandar 
Jeeva Samadhi: Uraiyur in Trichy District

Hastham (Hastha)
Siddhar: Karuvurar 
Jeeva Samadhi: Karur. His glow of light (Oli Vattam) is said to be in Periya Kovil at Thanjavur

Chithirai (Chitra)
Siddhar: Punnakeesar 
Jeeva Samadhi: Nannaser

Swathi
Siddhar: Pulippani
Jeeva Samadhi: Vaigavur near to Pazhani

Visagam (Vishakha)

Siddhar: Nandeesar (aka Nandi Devar) & Kudambai
Jeeva Samadhi: For Nandeesar it is Kasi Nagar and Kudambai it is Mayavaram

Anusham (Anuradha)
Siddhar: Valmiki aka Vaalmeegar 
Jeeva Samadhi: Ettukudi

Kettai (Jyeshta)
Siddhar: Vyasa 
Jeeva Samadhi: No Samadhi, it is believed that he dissolved all by himself. It is said that just thinking of him alone is enough and he will be there to support

Moolam (Moola)
Siddhar: Patanjali
Jeeva Samadhi: Rameshwaram

Pooradam (Poorva Ashada)

Siddhar: Ramadevar aka Yagopu
Jeeva Samadhi: Azhagar Malai. There is also a Samadhi believed to be in Mecca, Saudi Arabia

Uthiradam (Uttara Ashada)
Siddhar: Konganar 
Jeeva Samadhi: Tiruppathi

Thiruvonam (Shravana)
Siddhar: Dakshinamurthy
Jeeva Samadhi: Pallithennal near Pondicherry

Avittam (Dhanishta)
Siddhar: Thirumoolar
Jeeva Samadhi: Chidambaram

Sadayam (Satabhisha)

Siddhar: Kowbalar
Jeeva Samadhi: No information is available. However it is believed that just thinking of him will enable him to grant his grace

Pooratathi (Poorva Bhadrapada)
Siddhar: Jyoti Muni
Jeeva Samadhi: No Samadhi. It is believed that he took life in the form of Jyoti (Diya). Thus lighting lamps alone would invoke his grace

Uttirattathi (Uttara Bhadrapada)
Siddhar: Damaragar
Jeeva Samadhi: No Samadhi. It is believed that he directly dissolved himself. Legend states that he will do service for human race in the form of music

Revathi
Siddhar: Sundara Nandhar
Jeeva Samadhi: Madurai

Note: For Pooratathi (Poorva Bhadrapada) star, the Siddhar is Jyoti Muni who is said to have appeared in the form of a jyoti (light), hence there is no traditional Siddhar picture. Thus any invocation of the divine with the background of the light of Diya can be used as a methodology for Siddhar worship. For Uthirattathi (Uttara Bhadrapada) also, there is not much information available on Sage Damaragar hence the image may not be of the correct Siddhar. For this star it is suggested to pray to the Siddhar through the medium of bell sounds. However irrespective of the pictures, just thinking of one's respective Siddhar and praying to them will have the same effect and its not required to always only see an image and pray to them. A majority of the pictures in this article have been sourced from the web.

Navagraha Siddhar Information
Summarising list of all the 9 Navagrahas connected with the respective 2 Siddhars linked to each of the planets Sun, Moon, Mars, Mercury, Jupiter, Venus, Saturn, Rahu and Ketu.

Sun:
Siddhar: Pattinathar & Kaduveli

Moon:

Siddhar: Siva Vakiyar & Kambili

Mars:

Siddhar: Bhogar & Pulippani

Mercury:

Siddhar: Vallalar & Idaikadhar

Jupiter:

Siddhar: Kaga Bhujandar & Agapeyar

Venus:

Siddhar: Kanjamalai & Sennimalai

Saturn:

Siddhar: Kapilar & Karuvurar

Rahu:

Siddhar: Alugunar & Pambatti

Ketu:

Siddhar: Sattaimuni & Kudambai