When two families meet to discuss a marriage, one question arrives before the tea does: how many gunas match? The figure — out of thirty-six — comes from the ashtakoota system, the north Indian method of kundli milan. Ashta-koota means “eight categories”, and each koota examines one dimension of compatibility, scored from just two facts on each side: the janma nakshatra and the chandra rashi of the bride and of the groom.
The eight kootas, from one point to eight
Varna (1 point) compares temperamental class — a coarse first filter of outlook. Vashya (2) weighs mutual influence and attraction, grouping the rashis into types that naturally sway one another. Tara (3) counts the nakshatras between the two birth stars in each direction, testing whether each partner’s star falls benefic for the other — the same tarabala logic used in muhurta. Yoni (4) classifies each nakshatra by an animal nature and scores the pair’s instinctive compatibility, from same-yoni harmony down to the sworn-enemy pairs.
Graha Maitri (5) compares the lords of the two Moon signs — whether the planets ruling the two minds are friends, neutrals or enemies in the classical friendship table. Gana (6) matches temperament class: deva, manushya or rakshasa — the koota most often cited when a match “feels” wrong despite a good total. Bhakoota (7) takes the count from one rashi to the other and flags the difficult 6–8, 2–12 and 5–9 configurations, which tradition links to friction over health, prosperity and progeny. Nadi (8), weighted highest, compares the three-fold pulse classification of the nakshatras; an identical nadi scores zero and is treated as a dosha in its own right, classically associated with the health of children.
Reading the total honestly
The customary reading is: below 18 gunas, the match is not recommended; 18 to 24 is acceptable; 25 to 32 is good; above 32 is excellent. But the total is the beginning of judgement, not the end of it. A 28-guna match carrying nadi dosha or a hostile bhakoota deserves more caution than a plain 20; conversely, several doshas stand cancelled by classical exceptions — the same rashi with different nakshatras, or Moon-sign lords in friendship, can neutralise nadi or bhakoota faults. This is why two calculators can agree on the score and two astrologers can still disagree on the verdict.
Alongside the kootas, tradition checks mangal dosha — Mars in certain houses from the lagna or the Moon — on both charts, on the principle that like cancels like. And note that the south Indian dashakoota method scores ten categories differently, so a match should always be compared within one system, never across two.
The arithmetic of ashtakoota is fixed and ancient; what it needs is accurate input. Both partners’ nakshatra and chandra rashi must come from correct birth details — which the free computed kundli on Achaaryam gives you from the Moon’s real position, so that the counting of gunas starts from facts rather than guesses.
