Compatibility the Vedic way
"Are we compatible?" is probably the question astrologers hear most, and Vedic astrology answers it very differently from magazine sun-sign columns. The tradition does not compare two birthdays. It compares two Moons, the sign and nakshatra the Moon occupied at each birth, through a points system called Ashtakoota. Then, if the practitioner is careful, it compares the two whole charts. This guide explains both layers: what the famous 36 points actually measure, how doshas and their exceptions work, and what a sound reading looks at after the score.
Why the Moon, not the Sun
Jyotish reads the Moon as the mind: feelings, instinct and day-to-day temperament, which are the things two people living together actually have to fit. That is why matching uses the Moon sign (rashi) and the Moon's nakshatra, never the Sun sign. Most people's Vedic Moon sign differs from the sign they read in newspapers, so the first step for anyone curious is to find their real one with the Moon sign calculator.
Ashtakoota: the eight factors and their 36 points
Ashtakoota ("eight groups") is the matching system most used in North India. Each koota compares one aspect of the two Moons and carries a maximum score. The weights rise with the factor's importance:
- Varna (1 point) compares the four temperament classes the texts assign to the Moon signs, one per element.
- Vashya (2 points) measures mutual influence, the natural pull one Moon sign has over the other, using sign groups such as human, quadruped and water-dwelling.
- Tara (3 points) counts each person's birth star from the other's and checks which of the nine tara groups it falls into. Some groups are favourable and others are not.
- Yoni (4 points) assigns every nakshatra an animal (horse, elephant, serpent, cat and others) and compares the two animals' natures. It is read for instinctive and physical compatibility.
- Graha Maitri (5 points) compares the lords of the two Moon signs through their natural friendship. It is read for mental affinity and how easily two people understand each other.
- Gana (6 points) places each nakshatra in one of three temperaments, Deva (gentle), Manushya (human) or Rakshasa (fierce), and compares them.
- Bhakoot (7 points) looks at how far apart the two Moon signs are. Second-twelfth, fifth-ninth and sixth-eighth relationships score zero. The other distances score the full seven.
- Nadi (8 points) divides the nakshatras into three nadis (Adi, Madhya and Antya). The same nadi in both charts scores zero, and the texts give this factor the heaviest weight of all.
Varna, Vashya, Graha Maitri and Bhakoot (15 points) depend only on the two Moon signs. Tara, Yoni, Gana and Nadi (21 points) depend on the two birth stars. That is why an accurate nakshatra matters so much. Our guide to finding your Janma Nakshatra explains how to confirm it.
Reading the total
The convention most families know is that 18 of 36 is the minimum for a match to be considered, with higher totals read as progressively more harmonious. The number is useful as a first filter and badly misleading as a final answer, for three reasons:
- Where the points come from matters more than how many there are. A 26 that scores zero on Nadi is a different situation from a 26 that loses its points on Varna, Vashya, Tara and Yoni.
- The doshas have exceptions. A zero on Bhakoot or Nadi is often cancelled by classical rules, which changes the meaning of the total.
- The score only sees the Moons. It says nothing about the seventh house, Venus, the navamsa or the timing of either life.
Doshas and their exceptions
Three zero scores carry names, because the texts treat them as conditions to examine rather than simple lost points.
Nadi dosha
Both Moons in the same nadi. It is the most discussed dosha, traditionally linked to health and progeny. The texts also list exceptions, and the most cited is when both Moons share a sign but sit in different nakshatras. Practitioners differ on which exceptions they accept, which is one reason two matching reports for the same couple can disagree. The Nadi dosha calculator checks any two birth nakshatras and shows which listed exceptions apply.
Bhakoot dosha
The Moon signs are second-twelfth (associated with finances), fifth-ninth (with children and shared fortune) or sixth-eighth (with disputes and health) from each other. The classical cancellation accepted most widely is lordship. When one planet rules both signs, or the two lords are natural friends, many texts treat the dosha as void. Our pages for each sign pair, in the compatibility hub, list the Bhakoot points and which of these exceptions applies for every combination of two signs. For any two Moon signs, the Bhakoot dosha calculator gives the koota score and whether a lord exception applies.
Gana dosha
A Deva or Manushya birth star paired with a Rakshasa one scores low on Gana. Here too the texts soften the rule, often when Graha Maitri is strong, because two Moon-sign lords who are friends are read as smoothing over a difference in temperament.
Mangal dosha
Alongside the 36 points, most families check Mangal dosha (also called Kuja or Manglik dosha). It is defined by Mars's house position, usually the 1st, 2nd, 4th, 7th, 8th or 12th, counted from the lagna and often also from the Moon and Venus. Conventions vary on which houses count and which reference points to use, so the same chart can be "manglik" by one convention and not by another. The classical texts list cancellations too, the best known being that the dosha is considered balanced when both partners have it. Check the convention before taking a label to heart. The Mangal dosha calculator states which convention it applies.
After the score: reading two whole charts
A careful compatibility reading treats Ashtakoota as the start of the conversation. It then looks at:
- The seventh house and its lord in each chart: what each person seeks and brings to partnership, and how strong that house is.
- Venus, and Jupiter: the natural significators of love and marriage, their dignity and their afflictions.
- The navamsa (D9): the divisional chart Parashara assigns to marriage. Strong seventh-house factors in the birth chart are confirmed, or qualified, here. The navamsa calculator draws it.
- How the charts interact: one person's Moon or Venus falling on the other's ascendant or seventh house, or their planets supporting each other's weak points.
- Timing: which dashas both people are entering. Two lives entering difficult periods at the same moment, or both changing mahadasha together (dasha sandhi), is something experienced readers look at closely.
South Indian practice uses a parallel system of ten poruthams, including Rajju and Vedha. It overlaps with Ashtakoota but weighs some factors differently, another reminder that the score belongs to a system, and the system is a tool.
Where sign compatibility fits
Sign-to-sign compatibility, the kind most people meet first, is not useless in this picture. It is the outer layer. Between two Moon signs, four of the eight kootas are already fixed by the signs alone: the friendship of their lords, the distance between them, and the two class-based kootas. The element and modality of each sign also say something real about tempo and temperament. What sign compatibility cannot do is see the nakshatras, the houses or the timing, which is where most of a real match is decided.
Using it wisely
Vedic matching was designed to help families make a careful decision with the information they had. Used that way it is valuable: it flags differences worth discussing and periods that need patience. Used as a pass-or-fail exam it does harm, because a number cannot hold the whole of two people. For a quick traditional score, run a free kundli match with both birth details. For a written analysis of both full charts, the seventh houses, the navamsa and the coming dashas, see the marriage match report.


