There are various methods in figuring out problem areas in a horoscope and one supposed technique happens to be 'Mudakku' which occurs exclusively from the position of the Sun in a natal chart. The actual coinage of this concept is actually 'Latta' or 'Sthula' which indicates a thorn or contraction but since the word 'Mudangu' in Tamil gives a more apt meaning to the terminology of blockage or restrain or hindrance, it popularly came to be termed as 'Mudakku'. In Tamil dialect 'Mudakku' is said to indicate "Ool Vinai Karma" which mentions about one's inherited fate. In layman's terms, it is said to imply that whatever house or bhava comes as 'Mudakku' in one's horoscope, that indicates a susceptibility and needs to be remedied and worked upon. It is like saying that if a machine stops working, we would have to repair it and that's how it has to be linked within the parlance of a horoscope.
Mudakku is calculated based on the following procedure. We first need to ascertain the Nakshatra in which Sun is placed in the horoscope. From that Nakshatra we need to count until Moola Nakshatra. The count arrived at should then again be counted from Poorva Ashada (Pooradam) Nakshatra and the resultant Nakshatra happens to be the Mudakku Nakshatra with the house owner said to be causing the Mudakku Dosha. The reason for the counting taking place till Moola is because that's the space which is said to possess the location of the Kundalini viz the Mooladhara. There are certain resultant Nakshatras that fall in two rasis and in such a case we always need to evaluate based on where the initial pada of the Nakshatra falls and that would end up being the Mudakku Bhava.
As an illustration let's say someone has their Sun placed in Chitra Nakshatra. We need to count from Chitra till Moola both inclusive which happens to be 6 in number. Now 6 Nakshatras have to be counted from Poorva Ashada (Pooradam) and that will result in Poorva Bhadrapada (Pooratathi) Nakshatra. Hence the Mudakku Nakshatra happens to be Poorva Bhadrapada and the house causing the Mudakku Dosh will be Kumbha or Aquarius since we have to see where the Nakshatra of Poorva Bhadrapada starts which will always be Kumbha.
Listed below are the Mudakku Nakshatra, Mudakku Rasi and Mudakku Lord for all the Nakshatras when Sun is placed from Ashwini to Revathi
1) Ashwini:
Mudakku Nakshatra : Pooram / Poorva Phalguni
Mudakku Rasi : Simha / Leo
Mudakku Lord : Sun
2) Bharani:
Mudakku Nakshatra : Magam / Magha
Mudakku Rasi : Simha / Leo
Mudakku Lord : Sun
3) Krithika:
Mudakku Nakshatra : Ayilyam / Ashlesha
Mudakku Rasi : Karka / Cancer
Mudakku Lord : Moon
4) Rohini:
Mudakku Nakshatra : Poosam / Pushya
Mudakku Rasi : Karka / Cancer
Mudakku Lord : Moon
5) Mrigaseerisham / Mrigashira:
Mudakku Nakshatra : Punarpoosam / Punarvasu
Mudakku Rasi : Mithuna / Gemini
Mudakku Lord : Mercury
6) Thiruvadirai / Aarudra:
Mudakku Nakshatra : Thiruvadirai / Aarudra
Mudakku Rasi : Mithuna / Gemini
Mudakku Lord : Mercury
7) Punarpoosam / Punarvasu:
Mudakku Nakshatra : Mrigaseerisham / Mrigashira
Mudakku Rasi : Rishaba / Taurus
Mudakku Lord : Venus
8) Poosam / Pushya:
Mudakku Nakshatra : Rohini
Mudakku Rasi : Rishaba / Taurus
Mudakku Lord : Venus
9) Aayilyam / Ashlesha:
Mudakku Nakshatra : Krithika
Mudakku Rasi : Mesha / Aries
Mudakku Lord : Mars
10) Magam / Magha:
Mudakku Nakshatra : Bharani
Mudakku Rasi : Mesha / Aries
Mudakku Lord : Mars
11) Pooram / Poorva Phalguni:
Mudakku Nakshatra : Ashwini
Mudakku Rasi : Mesha / Aries
Mudakku Lord : Mars
12) Uthiram / Uttara Phalguni:
Mudakku Nakshatra : Revathi
Mudakku Rasi : Meena / Pisces
Mudakku Lord : Jupiter
13) Hastham / Hastha:
Mudakku Nakshatra : Uthiratathi / Uttara Bhadrapada
Mudakku Rasi : Meena / Pisces
Mudakku Lord : Jupiter
14) Chitra:
Mudakku Nakshatra : Pooraratathi / Poorva Bhadrapada
Mudakku Rasi : Kumbha / Aquarius
Mudakku Lord : Saturn
15) Swati:
Mudakku Nakshatra : Sadayam / Satabhisha
Mudakku Rasi : Kumbha / Aquarius
Mudakku Lord : Saturn
16) Vishaka:
Mudakku Nakshatra : Avittam / Dhanishta
Mudakku Rasi : Makara / Capricorn
Mudakku Lord : Saturn
17) Anusham / Anuradha:
Mudakku Nakshatra : Tiruvonam / Shravana
Mudakku Rasi : Makara / Capricorn
Mudakku Lord : Saturn
18) Kettai / Jyeshta:
Mudakku Nakshatra : Uthiradam / Uttara Ashada
Mudakku Rasi : Dhanus / Sagittarius
Mudakku Lord : Jupiter
19) Moolam / Moola:
Mudakku Nakshatra : Pooradam / Poorva Ashada
Mudakku Rasi : Dhanus / Sagittarius
Mudakku Lord : Jupiter
20) Pooradam / Poorva Ashada:
Mudakku Nakshatra : Moolam / Moola
Mudakku Rasi : Dhanus / Sagittarius
Mudakku Lord : Jupiter
21) Uthiradam / Uttara Ashada:
Mudakku Nakshatra : Kettai / Jyeshta
Mudakku Rasi : Vrischika / Scorpio
Mudakku Lord : Mars
22) Tiruvonam / Shravana:
Mudakku Nakshatra : Anusham / Anuradha
Mudakku Rasi : Vrischika / Scorpio
Mudakku Lord : Mars
23) Avittam / Dhanishta:
Mudakku Nakshatra : Vishaka
Mudakku Rasi : Thula / Libra
Mudakku Lord : Venus
24) Sadayam / Satabhisha:
Mudakku Nakshatra : Swati
Mudakku Rasi : Thula / Libra
Mudakku Lord : Venus
25) Pooraratathi / Poorva Bhadrapada:
Mudakku Nakshatra : Chitra
Mudakku Rasi : Kanya / Virgo
Mudakku Lord : Mercury
26) Uthiratathi / Uttara Bhadrapada:
Mudakku Nakshatra : Hastham / Hastha
Mudakku Rasi : Kanya / Virgo
Mudakku Lord : Mercury
27) Revathi:
Mudakku Nakshatra : Uthiram / Uthira Phalguni
Mudakku Rasi : Simha / Leo
Mudakku Lord : Sun
As spoken about earlier, the house which comes as 'Mudakku' causes a bottleneck or an obstacle which weighs down heavily relating to the significations of that house. Listed below are some effects based upon the house owner of the Mudakku:
Mars - Difficulty in initiating things. Problem with property related matters.
Venus - Issues in relationships and dealing with people.
Mercury - Documentation problems and troubles arising out of communication. Issues with education.
Moon - Causes mental instability and discomfort. Body and mind not in sync.
Sun - Lack of authority and respect. Governmental matters causes problems.
Jupiter - No support from elders and lack of guidance. Problems in dealing with children.
Saturn - General delay in happening of things. Profession related problems.
Sharing below brief issues depending on the house in which Mudakku occurs:
1st House - Individual finds it hard to get going or go forward with any venture, faces issues with anything that native initiates. These natives find it hard to exhibit their talents and hence makes it difficult for themselves to grow. They tend to get caught in a shell and natives with such a placement are said to be adamant not listening to anyone and taking own decisions only to suffer the consequences
2nd House - Family and money matters tend to backfire. For such a native nobody tends to listen and take them seriously. These people should ideally not give or take any loans as they find it hard to get back or repay funds on time. It is also said that such a native should be careful in driving vehicles as accidents can occur.
3rd House - With such a placement, good deeds seldom takes place. It is not good for any document related work and such natives face issues of cheque bouncing / returning. Also if such a native provides information to anyone, there are chances of landing in problems. Their communication seldom gets misinterpreted and they find it hard to come to the limelight. They also tend to face issues from their younger siblings.
4th House - Mother related significations can take a beating. Additionally mental peace can be disturbed and there can be instability in home environment. They always face property issues. During the process of buying or construction or after that also some or other problem in house environment tends to affect them by default.
5th House - This is said to induce plenty of troubles and is a placement said to cause Putra Dosh. They also face issues with ancestral wealth and fall short of getting blessings of their Kula Deva with regard to any deed. Love matters can also take a hit. These natives never hear any good things and are usually critical of other people.
6th House - These natives are generally under confident having fear and self doubt. They also tend to give benefit to others whether right or wrong. They usually lack the competitive edge. Any service they perform they find it to hard to come out victorious. In day to day jobs, they largely face problems with regard to type of job, sub ordinates etc mostly indicating lack of job satisfaction.
7th House - This placement usually sparks issues with regard to married life and relationships. They are advised to not get into partnership business of any sorts. These natives never get company of the rightful friends and most of their affairs in dealing with people end up being distasteful.
8th House - These natives are always on the search and keep seeking things throughout. They are never self satisfied and keep on looking for newer avenues and tend to trouble themselves a lot by overdoing stuff. They undergo sudden upheavals time and again and embarrassing situations can come upon many a time. As 8th also indicates 'Mangalya Sthana', some or other issue can crop up at time of performing marriage or after that also.
9th House - Auspicious happenings take a beating. It is not good for father related significations as well and these natives are unlucky when it comes to accumulating ancestral blessings. They face issues even in wanting to visit their 'Ishta Devata'. Even when they go abroad from their homeland these natives tend to encounter problems. Maladies are also said to culminate especially with respect to uterus.
10th House - As this is the house of Karma, plenty of karma significations tend to get affected. One will be prohibited from performing his karma. Issues in married life along with more than one marriage is said to be possible along with not having fine relations with children. This house also indicates all to do with respect, honour and achievements and these natives always tend to stumble when it comes to attaining professional growth in career.
11th House - These natives are said to be highly desirous and always after possessions. They tend to be extremely materialistic and really keen on accumulating money more so others than their own. Gains of any kind are however hard to come by even if they so desire. Their minds tend to oscillate a lot and they never have any mental satisfaction or come to a decision quickly with respect to anything. Issues with elder siblings also keeps persisting.
12th House - These natives usually lack consciousness and are very slow in action taking their own time. They are usually said to incur heavy pains either on the head area or on the legs. Sleep problems are a constant and they are perennially disturbed. These people also find it hard to possess immovable properties. They also end up in losses and incur expenditure in various ways.
This in general is about the concept of Mudakku. It is extremely important to note the house in which the Mudakku is formed in the horoscope along with also knowing the house owner as some inherent significations of the house lord gets affected. The planets sitting in Mudakku Bhava also cause an impact. It is also believed that when the Karma planet Saturn in transit crosses the Mudakku house and especially the Mudakku Nakshatra and it's trine, it is said to induce intense karma dosh. For eg. if the Mudakku Nakshatra happens to be Revathi in Pisces, whenever Saturn crosses Revathi and its trine Nakshatras viz Ashlesha and Jyeshta in Cancer and Scorpio respectively it can cause severe troubles. There is also a way of keeping the Mudakku Bhava as Lagna and seeing where Sun is placed from it along with also seeing its movement from the main Lagna. For instance if Sun is placed 7th from Mudakku and 4th from Lagna, we can interpret by saying that marriage problems can get brewed largely due to lack of sukha or comforts. Poorva Phalguni and Uttara Phalguni are the Nakshatras forming and ending the process of Mudakku with both belonging in the rasi of Simha owned by the Sun which is the planet that ends up causing this whole Mudakku Dosh. Aadi Pooram (Poorva Phalguni) and Panguni Uthiram (Uttara Phalguni) are in fact important festivals celebrated in a religious way down South. This in essence is all about the stumbling block originating methodology of Latha or Sthula more popularly now known as 'Mudakku'.