Vedic astrology has system of matching the birth chart of Boy and Girl before marriage. This matching is called Guna Milan. Guna Milan is based on the position of Moon in the Natal Charts of bride and groom. In North India, there is a process of Guna Milan, called as, “Ashtakoot Milan”, which signifies the eight aspects of Gunas. “Ashta” means “Eight” and “Koota” means “Aspects”. The eight Kootas or Ashta Kootas are:
Varna/Varan/Jaati
It shows spiritual compatibility of boy and girl along with their ego levels. It is divided into 4 categories, such as Brahmins (Highest), Kshatriya, Vaishya, Shudra (Lowest). This is given 1 point.
Vasya/Vashya
It shows mutual attraction, control in marriage and also calculates the power equation in between married couples. A person is classified into 5 types, namely Manav/Nara (human), Vanchar (wild animals such as lion), Chatushpad (small animals such as deer), Jalchar (sea animals), Keeta/Keet (insects). This is given 2 point.
Tara/Dina : It is related to birth star compatibility and destiny. There are 27 birth stars (Nakshatra).
Yoni
It measures the intimacy level, sexual compatibility and mutual love between the couple. Yoni Koot is classified into 14 animals, which are Horse, Elephant, Sheep, Snake, Dog, Cat, Rat, Cow, Buffalo, Tiger, Hare/Deer, Monkey, Lion, Mongoose.
| Nakshatra | Nakshtra | Yoni & Extreme Enimity | |
| 1. Ashwini. | 24. Satabisa. | Horse | Buffalo |
| 2. Bhairini | 27. Revati | Elephant | Lion |
| 3. Krittika. | 8. Pushya | Goat | Monkey |
| 4. Rohini. | 5. Mrigasira. | Serpent | Camel |
| 6. Ardra | 19. Moola. | Dog | Hare |
| 7. P.Vasu. | 9. Aslesha. | Cat | Rat |
| 10. Magha. | 11. P.Phalguni. | Rat | Cat |
| 12. U. halguni. | 26. U.Bhadra. | Cow | Tiger |
| 13. Hasta. | 15. Swati. | Buffalo | Horse |
| 14. Chitra. | 16. Visakha. | Tiger | Cow |
| 17. Anuradha. | 18. Jyestha. | Deer | Dog |
| 20. P.asadha. | 22. Shravana. | Monkey | Goat |
| 21. U.asadha. | 28. Abhijit | Mongoose | Snake |
| 23. Dhanista. | 25. P.Bhadra. | Lion | Elephant |
Graha Maitri/Rasyadipati
It shows mental compatibility, affection and natural friendship. It also represents the moon sign compatibility between couples.
Gana
It is related to behaviour and temperament. Birth stars (Nakshatras) are divided into three categories- Deva (God, indicating Satwa Guna), Manava (Human, indicating Rajo Guna) and Rakshasa (Demon, indicating Tamo Guna).
Rashi or Bhakoot
It relates to the emotional compatibility and love between partners. The position of planets in boy’s birth chart is compared with the girl’s birth chart. If the boy’s moon is placed in 2nd, 3rd, 4th, 5th, 6th house from girl’s moon, then it is considered bad or inauspicious, whereas 7th and 12th houses are considered good. In case of female, If natal chart moon is placed in 2nd, 3rd, 4th, 5th and 6th houses from man’s chart, then it will be auspicious and inauspicious if placed 12th from man’s chart.
Nadi
It is related to health, well being, mutual understanding and progeny health. It relates to Adi, Madhya and Anta Nadi which relates to Vata, Pitta and Kalpha. Nadi should not match and it should be different.
| Nadi of Nakshtra | ||
| Vata | Pitta | Kapha |
| 1. Ashwini. | 2. Bhairini | 3. Krittika. |
| 6. Ardra | 5. Mrigasira. | 4. Rohini. |
| 7. P.Vasu. | 8. Pushya | 9. Aslesha. |
| 12. U. halguni. | 11. P.Phalguni. | 10. Magha. |
| 13. Hasta. | 14. Chitra. | 15. Swati. |
| 18. Jyestha. | 17. Anuradha. | 16. Visakha. |
| 19. Moola. | 20. P.asadha. | 21. U.asadha. |
| 24. Satabisa. | 23. Dhanista. | 22. Shravana. |
| 25. P.Bhadra. | 26. U.Bhadra. | |
| 27. Revati | ||
Point System for Gunas
| Koota | Maximum Points |
| Varna | 1 |
| Vasya/Vashya | 2 |
| Tara/Dina | 3 |
| Yoni | 4 |
| Grah Maitri | 5 |
| Gana | 6 |
| Rashi or Bhakoota | 7 |
| Nadi | 8 |
| Total | 36 |
There are total 36 Guna Milans in Ashtakoota. Let’s check below how the scores obtained for above Gunas are effective for marriage purposes.
Importance of Guna Milan
| Obtained Guna Points | Prediction or Result |
| Less than 18 | Not recommended for marriage |
| 18 to 24 | Average, Acceptable match and recommended for marriage |
| 24 to 32 | Very Good, successful marriage |
| 32 to 36 | Excellent Match |
Hence the scores obtained in Ashtakoota is seen through the above table. The match obtaining less than 18 will not be considered as an ideal couple and least recommended for marriage.
Apart from this, Manglik Dosha is also given importance while matching chart
Nakshtras details for All Points
| Nakshatra | Lord | Nadi | Yoni | Guna | Presiding Diety | Element |
| 1. Ashwini. | Ketu | Vata | Horse | Deva | Ashwini Kumar | Fire |
| 2. Bhairini | Venus | Pitta | Elephant | Manushya | Yama | Earth |
| 3. Krittika. | Sun | Kapha | Goat | Rakshasa | Agni | Air |
| 4. Rohini. | Moon | Kapha | Serpent | Manushya | Brahma | Water |
| 5. Mrigasira. | Mars | Pitta | Serpent | Deva | Soma | Fire |
| 6. Ardra | Rahu | Vata | Dog | Manushya | Rudra | Earth |
| 7. P.Vasu. | Jupiter | Vata | Cat | Deva | Aditi | Air |
| 8. Pushya | Saturn | Pitta | Goat | Deva | Brihaspati | Water |
| 9. Aslesha. | Mercury | Kapha | Cat | Rakshasa | Ahi | Fire |
| 10. Magha. | Ketu | Kapha | Rat | Rakshasa | Pitragana | Earth |
| 11. P.Phalguni. | Venus | Pitta | Rat | Manushya | Bhagya | Air |
| 12. U. halguni. | Sun | Vata | Cow | Manushya | Surya | Water |
| 13. Hasta. | Moon | Vata | Buffalo | Deva | Savita | Fire |
| 14. Chitra. | Mars | Pitta | Tiger | Rakshasa | Vishwakarma | Earth |
| 15. Swati. | Rahu | Kapha | Buffalo | Deva | Pawan | Air |
| 16. Visakha. | Jupiter | Kapha | Tiger | Rakshasa | Satragni | Water |
| 17. Anuradha. | Saturn | Pitta | Deer | Deva | Mitra | Fire |
| 18. Jyestha. | Mercury | Vata | Deer | Rakshasa | Indra | Earth |
| 19. Moola. | Ketu | Vata | Dog | Rakshasa | Nirriti | Air |
| 20. P.asadha. | Venus | Pitta | Monkey | Manushya | Toya | Water |
| 21. U.asadha. | Sun | Kapha | Mongoose | Manushya | Vishwadeva | Fire |
| 22. Shravana. | Moon | Kapha | Monkey | Deva | Hari | Earth |
| 23. Dhanista. | Mars | Pitta | Lion | Rakshasa | Vasu | Air |
| 24. Satabisa. | Rahu | Vata | Horse | Rakshasa | Varuna | Water |
| 25. P.Bhadra. | Jupiter | Vata | Lion | Manushya | Ajapada | Fire |
| 26. U.Bhadra. | Saturn | Kapha | Cow | Manushya | Abhibadhnu | Earth |
| 27. Revati | Mercury | Kapha | Elephant | Deva | Pushan | Air |