Nadi Dosha
Both partners in the same Nadi (Aadi, Madhya or Antya) — a concern for health and progeny. Cancelled when the birth-stars are the same nakshatra with different padas, or the same rashi with different nakshatras.
Methodology · Matching
How kundli matching is computed
Two classical systems run side by side — the eight-fold Ashtakoota of the North and the ten-fold Dasa Porutham of the South — both keyed on the sidereal Moon, with the doshas that decide most matches.
What it is
Guna Milan and Porutham
Kundli matching (Kundali Milan, Jataka Porutham) compares a prospective bride and groom to gauge marital compatibility. Both classical systems key on the Moon’s nakshatra and rashi at each birth — the Moon governs the mind and emotional life, which is what a marriage joins.
The North and generalized tradition scores Ashtakoota — eight kootas totalling 36 gunas. The South, and Tamil Nadu in particular, weighs Dasa Porutham — ten poruttham. We compute both from the same sidereal (Lahiri) positions, so a family sees the system they actually use.
“From the stars of the bride and the groom are reckoned the varna, the vashya, the tara, the yoni, the lord-friendship, the gana, the bhakoota and the nadi — eight in all.”
The method · North
The eight kootas — 36 gunas
Each koota carries a different maximum. We award points by the classical tables and sum them out of 36.
| Koota | Max | What it weighs | Keyed on |
|---|---|---|---|
| Varna | 1 | Spiritual compatibility, ego balance | Moon rashi → varna |
| Vashya | 2 | Mutual attraction and influence | Moon rashi |
| Tara / Dina | 3 | Health, fortune, longevity | Nakshatra count, both ways |
| Yoni | 4 | Physical / instinctive compatibility | Nakshatra → animal yoni |
| Graha Maitri | 5 | Mental and psychological accord | Friendship of the rashi lords |
| Gana | 6 | Temperament | Nakshatra → Deva / Manushya / Rakshasa |
| Bhakoot | 7 | Family welfare and prosperity | Relative Moon-sign positions |
| Nadi | 8 | Health and progeny | Nakshatra → Aadi / Madhya / Antya |
The gunas sum to 36. We read the total against the traditional bands, then modulate for the doshas below.
Varna + Vashya + Tara + Yoni up to 10
Graha Maitri + Gana up to 11
Bhakoot + Nadi up to 15
33–36 Excellent
25–32 Very good
18–24 Acceptable
below 18 Not recommended without remediation
Varna, Vashya, Yoni and Gana are asymmetric — the groom’s and bride’s roles are not interchangeable — so we always read the groom as the first party and the bride as the second, per the classical tables.
Which tradition we follow
Authoritative texts differ on some koota cells (the Vashya and Yoni tables, the air/earth Varna split, and one Graha-Maitri and Gana value). Rather than blend them, we mirror one named classical reference — Saravali — exactly, cell-for-cell, and unit-test every value against it. That is a stated, reproducible standard rather than an opaque average.
The method · South
The ten Dasa Porutham
The Tamil / South-Indian system. Two of the ten are hard gates: failing Rajju or Vedha is traditionally a rejection, whatever the others say.
| Poruttham | What it weighs |
|---|---|
| Dina | Health and longevity (nakshatra count from the bride’s star) |
| Gana | Temperament (Deva / Manushya / Rakshasa) |
| Mahendra | Progeny and wellbeing of the couple |
| Stree Deergha | Prosperity and longevity of the wife |
| Yoni | Physical harmony (the animal yonis) |
| Rasi | Family growth (relative Moon-sign position) |
| Rasyadhipathi | Friendship of the two Moon-sign lords |
| Vasya | Mutual attraction |
| Rajju — gate | Longevity of the husband. Same rajju limb → dosha |
| Vedha — gate | Obstructing nakshatra pairs must be absent |
“If the two birth-stars fall on the same rajju, reject the match; the rajju guards the life of the husband above all the other porutham.”
The doshas
Nadi, Bhakoot and Mangal — and their parihara
Beyond the score, three doshas decide most matches. Where the texts allow a cancellation, we show it rather than hide the dosha.
Bhakoot Dosha
The Moon-signs form a 2/12, 5/9 or 6/8 axis — a strain on family and finances. Cancelled when both signs share the same lord, or the two lords are mutual friends.
Mangal (Manglik) Dosha
Mars in the 1st, 2nd, 4th, 7th, 8th or 12th from Lagna or Moon. Cancelled when both partners are Manglik, or Mars is in its own / exalted sign, retrograde, or under a Cancer / Leo lagna. See the Mangal Dosha method.
The astronomy
Sidereal positions, computed live
Every koota and poruttham is a function of the two Moon nakshatras and rashis; the Mangal check adds Mars and the ascendant. We compute all of them from each birth’s date, time and place using the Swiss Ephemeris with the Lahiri (Chitrapaksha) ayanamsa — the same sidereal convention as the rest of the site.
Because the positions are computed directly for the birth instant, matching works for any birth date, historical or recent — it does not depend on any pre-generated almanac.
A grounded guide, not a verdict
Guna Milan and Porutham are the classical first check, not the whole of compatibility. A qualified astrologer weighs the full birth charts — the Navamsa (D9), the planetary dashas, and the strength of the 7th house and its lord. We show every koota, poruttham, dosha and cancellation openly so the reasoning is yours to inspect.
Our authorities
The texts we stand on
The rules on this page are drawn from the standard muhurta and dharma-nirnaya literature, computed on a modern astronomical foundation.
Saravali
The named reference we mirror cell-for-cell for the eight koota point tables.
Muhurta Chintamani
Ram Daivagya — the Ashtakoota kootas and dosha parihara.
Brihat Parashara Hora Shastra
On the doshas and planetary (Naisargika) friendships.
Tamil Vivaha Porutham tradition
The ten Dasa Porutham, with Rajju and Vedha as gates.
Swiss Ephemeris
Astrodienst — sidereal (Lahiri) Moon and Mars positions.
Computation: true positions from the Swiss Ephemeris, sidereal with the Lahiri (Chitrapaksha) ayanamsa — the standard adopted by the Indian Calendar Reform Committee for the Rashtriya Panchang.
Keep exploring
More from the methodology
Planetary Friendships
How planetary friendships are calculated
Natural, temporal and the five-fold Panchadha Maitri — how each planet-pair is graded.
Sade Sati
How Sade Sati is calculated
Saturn’s 7½-year transit over the 12th, 1st and 2nd from the natal Moon — timed by phase.
Ashtakavarga
How Ashtakavarga is calculated
The bindu (benefic-point) tables behind BAV and SAV — the sign-by-sign strength grid.
Vimshottari Dasha
How Vimshottari Dasha is calculated
The 120-year cycle of nine planetary periods, started from the Moon’s birth nakshatra.
Jaimini Karakas
How the Chara Karakas are calculated
The seven planets ranked by degree into Atmakaraka … Darakaraka — the Jaimini significators.
Rashifal
How we compute Rashifal
The gochar (transit) model behind our daily, monthly and yearly horoscope — Moon, Sun and the slow planets, read from your rashi.
Match two horoscopes
Enter both birth details for the full Ashtakoota and Porutham reading.
FAQ
How kundli matching is computed — Frequently Asked Questions
18 out of 36 is the traditional threshold for an acceptable Ashtakoota match, 25 and above is very good, and 33–36 is excellent — subject to the Nadi, Bhakoot and Mangal doshas, which can override a high score.
Tamil Nadu, Kerala and much of the South match by the ten Dasa Porutham rather than the 36-guna Ashtakoota. Rajju and Vedha in particular are treated as hard gates. We compute both so families see the system they actually follow.
Lahiri (Chitrapaksha), the sidereal convention used across the site and by most Indian panchangs, applied to the Swiss Ephemeris positions of the Moon and Mars.
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