Why the form says bride and groom
The printed tables are laid out with the bride (वधू) on the rows and the groom (वर) on the columns. Varna, vashya and gana give different points if the two are swapped, so the form keeps the two roles. Tara, yoni, graha maitri, bhakoot and nadi give the same points either way.
The eight kootas
| Koota | Points | What the text compares |
|---|---|---|
| Varna | 1 | Muhūrtacintāmaṇi 6.22 sorts the Moon signs into four varnas and does not commend a match in which the bride’s varna is above the groom’s. |
| Vashya | 2 | Muhūrtacintāmaṇi 6.23 reads which Moon sign is drawn to (vaśya) the other, by the nature of the signs: human, four-footed, water, forest and insect. |
| Tara | 3 | Muhūrtacintāmaṇi 6.24 counts from each partner’s nakshatra to the other’s, takes the remainder after nines, and does not favour 3, 5 and 7. |
| Yoni | 4 | Muhūrtacintāmaṇi 6.25–26 give each nakshatra an animal (yoni) and favour the same or friendly animals; seven pairs are named as great enemies. |
| Graha maitri | 5 | Muhūrtacintāmaṇi 6.27–28 compare the lords of the two Moon signs by natural friendship. |
| Gana | 6 | Muhūrtacintāmaṇi 6.29–30 place each nakshatra in the deva, manuṣya or rākṣasa gana and say that the same gana gives the closest affection (prīti). |
| Bhakoot | 7 | Muhūrtacintāmaṇi 6.31 reads the 2-12, 5-9 and 6-8 relations between the two Moon signs as not favourable, and the others as favourable. |
| Nadi | 8 | Muhūrtacintāmaṇi 6.34 places each nakshatra in one of three nadis and does not favour both partners in the same nadi. |
How the koota tables work
Five kootas use the nakshatra of the Moon and three use its rashi. These are the classes the tables assign, from Muhūrtacintāmaṇi chapter 6 and the 1914 primer.
- Varna (1): the groom’s varna equal to or above the bride’s gives 1.
- Vashya (2): read from a five-by-five table of the two classes, 0 to 2.
- Tara (3): count from each nakshatra to the other and divide by nine; a remainder of 3, 5 or 7 is not favoured; 1½ for each favoured direction.
- Yoni (4): the same animal gives 4; the seven pairs of great enemies give 0; the 14-by-14 table of 1914 gives the rest.
- Graha maitri (5): the lords of the two rashis, by natural friendship: both friends 5, friend and neutral 4, both neutral 3, friend and enemy 1, neutral and enemy ½, both enemies 0.
- Gana (6): the same gana gives 6; the 1914 rule gives a deva groom with a manushya bride 6, the reverse 5, a rakshasa groom with a deva bride 1, and the rest 0.
- Bhakoot (7): the two rashis 2-12, 5-9 or 6-8 apart give 0; any other relation gives 7.
- Nadi (8): the same nadi gives 0; different nadis give 8.
By nakshatra: yoni, gana and nadi
| Nakshatra | Rashi | Yoni | Gana | Nadi |
|---|---|---|---|---|
| Ashwini | Mesha | Horse | Deva | Adi |
| Bharani | Mesha | Elephant | Manushya | Madhya |
| Krittika | Mesha / Vrishabha | Sheep | Rakshasa | Antya |
| Rohini | Vrishabha | Serpent | Manushya | Antya |
| Mrigashira | Vrishabha / Mithuna | Serpent | Deva | Madhya |
| Ardra | Mithuna | Dog | Manushya | Adi |
| Punarvasu | Mithuna / Karka | Cat | Deva | Adi |
| Pushya | Karka | Sheep | Deva | Madhya |
| Ashlesha | Karka | Cat | Rakshasa | Antya |
| Magha | Simha | Rat | Rakshasa | Antya |
| Purva Phalguni | Simha | Rat | Manushya | Madhya |
| Uttara Phalguni | Simha / Kanya | Cow | Manushya | Adi |
| Hasta | Kanya | Buffalo | Deva | Adi |
| Chitra | Kanya / Tula | Tiger | Rakshasa | Madhya |
| Swati | Tula | Buffalo | Deva | Antya |
| Vishakha | Tula / Vrishchika | Tiger | Rakshasa | Antya |
| Anuradha | Vrishchika | Deer | Deva | Madhya |
| Jyeshtha | Vrishchika | Deer | Rakshasa | Adi |
| Mula | Dhanu | Dog | Rakshasa | Adi |
| Purva Ashadha | Dhanu | Monkey | Manushya | Madhya |
| Uttara Ashadha | Dhanu / Makara | Mongoose | Manushya | Antya |
| Shravana | Makara | Monkey | Deva | Antya |
| Dhanishta | Makara / Kumbha | Lion | Rakshasa | Madhya |
| Shatabhisha | Kumbha | Horse | Rakshasa | Adi |
| Purva Bhadrapada | Kumbha / Meena | Lion | Manushya | Adi |
| Uttara Bhadrapada | Meena | Cow | Manushya | Madhya |
| Revati | Meena | Elephant | Deva | Antya |
By rashi: varna, vashya class and lord
| Rashi | Varna | Vashya class | Lord |
|---|---|---|---|
| Mesha | Kshatriya | Four-footed | Mars |
| Vrishabha | Vaishya | Four-footed | Venus |
| Mithuna | Shudra | Human | Mercury |
| Karka | Brahmin | Water | Moon |
| Simha | Kshatriya | Forest | Sun |
| Kanya | Vaishya | Human | Mercury |
| Tula | Shudra | Human | Venus |
| Vrishchika | Brahmin | Insect | Mars |
| Dhanu | Kshatriya | Human | Jupiter |
| Makara | Vaishya | Water | Saturn |
| Kumbha | Shudra | Human | Saturn |
| Meena | Brahmin | Water | Jupiter |
Readings you can choose
The printed sources do not agree on every table. The calculator uses the first reading in each row and shows the score under the others beside it. You can change the reading in the form.
| Varna |
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|---|---|
| Vashya |
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| Tara |
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| Graha maitri |
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| Gana |
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| Bhakoot |
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Cancellation rules
Muhūrtacintāmaṇi records traditional rules under which some families do not count a koota. The calculator shows them as labelled notes when they apply. It never changes a score because of them.
- Bhakoot, when the two rashis share a lord or their lords are friends, and the nadi differs (6.32–33).
- Gana, when the lords of the two rashis are the same or friends (6.33).
- Graha maitri, when the bhakoot is favourable (6.33).
- Nadi and gana, when both Moons share a rashi but not a nakshatra, or a nakshatra but not a rashi (6.36).
- The same nakshatra in different padas, which the text reads as favourable (6.36).
What this tool does not do
- It does not look at Mars or any other planet in a birth chart; it uses only the Moon.
- It does not use the South Indian ten-porutham method. That is planned separately.
- It gives no verdict, no pass mark and no advice. The scores are what the tables give.
The clock offset for the birth date comes from the international time-zone database, so old dates use the clock rules of their time (for example, India used +6:30 from 1942 to 1945). The result shows the offset used. If the family clock followed local time, such as Bombay Time before 1955, enter that offset yourself.
The Moon’s position is computed for the birth instant, with the Lahiri ayanamsa the site uses for every panchang date. It agrees with NASA JPL’s DE440 ephemeris to within about 4 seconds of arc for any date from 1900 to 2100, which moves a pada boundary by under 10 seconds.
Sources
The rules are Muhūrtacintāmaṇi chapter 6, verses 21–36, with Govinda’s Pīyūṣadhārā commentary. The point tables are from two printings. All three can be read page by page on archive.org.
- Muhūrtacintāmaṇi of Rāma Daivajña, with Govinda's Pīyūṣadhārā commentary, ed. Vāsudeva Śarmā Paṇaśīkara; Nirṇaya Sāgara Press, Mumbaī, Śaka 1829 (1907), p. 245, Vivāha-prakaraṇa 6.21 (leaf n258). archive.org
- Bālabodha Jyotiṣa Sāra Saṅgraha (बालबोधज्योतिषसारसंग्रहः), with the Hindi commentary of Pt. Nārāyaṇa Prasāda Miśra; Lakṣmī Veṅkaṭeśvara Press, Kalyāṇ–Mumbaī, Saṃvat 1970 / Śaka 1835 (1913–14), pp. 83–92 (koota tables). archive.org
- Muhūrtacintāmaṇi of Rāma Daivajña, with the Hindi bhāṣāṭīkā of Mahīdhara Śarmā; Lakṣmī Veṅkaṭeśvara Press, Kalyāṇ, 1905, pp. 105–107 (koota tables). archive.org
Families read these scores in different ways, and many consult their own priest or astrologer.
Baby name letters by nakshatra · Vivah muhurat: wedding windows by city, from the printed rules