The eight part matching system
Ashta Koota, also called Guna Milan, is the traditional method of matching two birth charts in Vedic astrology. Ashta means eight and Koota means a factor or group. The system gives a score out of 36 points by comparing eight qualities of two people, and it is most often used when families consider a marriage.
The method is based only on the Moon. It uses the Moon sign and the Moon Nakshatra of each person, which is why a precise birth time matters. The Moon changes sign every two and a half days and Nakshatra about every day, so a small error in time can change the score. It is a simple and quick measure that gives a first impression of fit, and it is only one part of a full chart comparison.
The eight Kootas and their points
| Koota | Points | What it describes |
|---|---|---|
| Varna | 1 | Spiritual outlook and ego |
| Vashya | 2 | Mutual attraction and influence |
| Tara | 3 | Health and well being of the pair |
| Yoni | 4 | Physical and sexual compatibility |
| Graha Maitri | 5 | Mental friendship |
| Gana | 6 | Temperament |
| Bhakoot | 7 | Emotional bond and prosperity |
| Nadi | 8 | Health and family line |
The points add up to 36. The higher points for the later Kootas show that tradition gives more weight to temperament, emotional bond and health than to the earlier ones.
What each Koota checks
Varna, 1 point. Signs are grouped into four classes in a traditional order, with Cancer, Scorpio and Pisces as the highest and Gemini, Libra and Aquarius as the lowest. The point is given if the class of the groom is equal to or higher than that of the bride. In modern use it is read as a loose sign of how the two see ambition and duty.
Vashya, 2 points. Signs are grouped by a symbolic type, such as human, quadruped or water. It checks which partner tends to lead and how easily they influence each other.
Tara, 3 points. It counts the Nakshatra of one person from the other and divides the count by nine. Some remainders are favorable and some are not. It is read as a sign of fortune and health in the shared life.
Yoni, 4 points. Every Nakshatra has an animal symbol, and some animals are friends and others are natural enemies. A matching or friendly pair scores high. It is read as physical ease and chemistry.
Graha Maitri, 5 points. It compares the ruling planets of the two Moon signs. Planets that are friends give high points. It is read as the likelihood of mental understanding and friendship.
Gana, 6 points. Each Nakshatra belongs to one of three types, Deva, Manushya or Rakshasa. These are symbolic temperaments, roughly gentle, practical and strong willed. Same or compatible types score well.
Bhakoot, 7 points. It looks at the distance between the two Moon signs. The pairs that are second and twelfth, fifth and ninth, or sixth and eighth from one another are said to give a Bhakoot Dosha and score zero. It is read as the emotional bond and the shared prosperity.
Nadi, 8 points. Each Nakshatra belongs to one of three Nadis, called Adi, Madhya and Antya. If both partners share the same Nadi, the score is zero, and a Nadi Dosha is said to arise. Tradition links this with health of children and family. It is the most heavily weighted check.
How to read the score
A common reading follows these bands.
| Score | Traditional reading |
|---|---|
| Below 18 | Not recommended |
| 18 to 24 | Acceptable, with care |
| 25 to 32 | Good match |
| 33 to 36 | Excellent match |
Most traditions treat 18 as the minimum. A score near 36 is rare, and most real couples fall between 20 and 30. A high score does not guarantee a happy marriage, and a low one does not rule it out.
Doshas and cancellations
Three results draw most attention. Nadi Dosha and Bhakoot Dosha, which each remove a large block of points, and Gana mismatch. Texts list several cancellations. For example, a Nadi Dosha is said to be cancelled if the partners share a Nakshatra with different padas, or if the Moon signs are the same but the Nakshatras differ. The cancellation rules vary by tradition, so it is best to ask which source is being used. Many modern astrologers say a Dosha should be a prompt for discussion and not a reason to end a match.
Other checks that go with it
A full match usually adds more than the score. Astrologers compare the Lagna and the seventh house of both charts, check for Manglik Dosha, look at the strength of Venus and Jupiter, and compare the running Dasha periods, found with the Vimshottari Dasha. A pair with a modest score and a strong supporting chart is often preferred over a high score with weak signs elsewhere.
Ashta Koota and Western synastry
Western astrology compares two charts through synastry, by checking the angles between the planets of each person. It uses the Sun, Moon, Venus, Mars and more, in a full chart view. Ashta Koota uses only the Moon of each person, scored by fixed tables. The two methods ask different questions, and some people like to read both.
What the system cannot do
Scientific studies have not found that a Guna Milan score predicts how happy or lasting a marriage will be. A score reflects a tradition of symbolism. Factors like honesty, kindness, shared values and the way a couple handle disagreements matter far more. Use the score as a conversation starter and not as a deciding factor, and be careful with anyone who tells you to cancel a marriage on the basis of a number.