When a classical astrologer is asked whether two people should marry, they do not begin with the two charts side by side. They begin with a score: a point-based system that weighs eight dimensions of the couple's Moons — the emotional cores of the two charts.
That system is Ashtakuta matching, the traditional eightfold evaluation used across India for centuries. It assigns points from a total of 36, and while no score guarantees a happy marriage, the system has survived because it measures real things: emotional resonance, physical chemistry, mutual respect, and the ability to build a home together.
The Eight Kutas
Each of the eight dimensions is a kuta, a test or compatibility factor. They are scored by comparing the two birth Moons — their signs, their lunar mansions, and the planets ruling them. Here are the eight, with the points each carries:
- Varna (1 point) — spiritual and social temperament; whether your natures run at the same level of refinement.
- Vashya (2 points) — mutual attraction and influence; whether one of you naturally draws the other.
- Tara (3 points) — auspiciousness of the nakshatra relationship; whether the pairing is considered fated to go well.
- Yoni (4 points) — physical and instinctual compatibility; the animal symbolism of the birth nakshatras.
- Graha Maitri (5 points) — friendship between the Moon lords; whether your emotional rulers are natural friends or enemies.
- Gana (6 points) — temperamental nature (divine, human, or demonic); whether your basic characters harmonize.
- Bhakoot (7 points) — the sign-to-sign relationship of the two Moons; whether your emotional worlds support each other.
- Nadi (8 points) — the subtle constitution; whether the pairing risks physical or health conflicts.
The points climb with importance: the smallest factors are social and temperamental, the largest are physical and constitutional.
What a High Score Means
The total is read out of 36, and the thresholds are traditional:
- Above 30 points — an excellent match; the elders approve and the marriage is generally blessed.
- 24 to 30 points — a good match; the couple has strengths to build on and some tensions to manage.
- Below 24 points — a weaker match; serious consideration of the specific defects is advised.
- Below 18 points — traditionally discouraged, unless the couple's charts show other compensating strengths.
The score is a screen, not a verdict. A high score with poor synastry can still produce friction, and a moderate score with strong planetary connections can produce a devoted marriage. The point system is one witness; the two charts are another.
The Critical Kutas
Not all kutas are equal in practice, and experienced readers weigh some more heavily than the points suggest:
- Nadi is the most feared: a nadi dosha (a bad nadi match) is classically said to bring health problems or childlessness. Many families refuse a match on this alone, though modern readers often check it against the actual charts before panicking.
- Bhakoot is next in weight: a Moon-to-Moon sign conflict can mean emotional worlds that never quite align, and its seven points are often the deciding factor in a borderline score.
- Gana is the most telling for day-to-day life: divine and human natures usually harmonize, but divine and demonic natures clash in temperament.
When a match scores well overall but fails one critical kuta, the tradition prescribes remedies — from specific rituals to simply choosing a different approach to the union — rather than an outright rejection.
Why the System Uses the Moon
A first-time reader often asks why all eight kutas are calculated from the two Moons rather than from the Sun signs or the Ascendants. The answer is a principle of the tradition: the Moon is the mind.
The Sun shows identity, the Ascendant shows the body and the life path, but the Moon shows the emotional nature — how a person feels, needs, and reacts in the private hours of a relationship. Two people can agree on everything in public and still be strangers at home; the Moon is where the home life is decided.
This is why Ashtakuta is a system about feeling, not image. It asks whether two emotional cores can share a life, which is precisely the question a marriage must answer.
How the Moon Lords Decide Friendship
The Graha Maitri kuta is the one most beginners can check by hand. Each planet has natural friends and enemies: Venus and Mercury are friends, the Sun and the Moon are friends, and the Sun and Venus are mutual enemies — so the classical table is a genuine web, not a popularity contest.
Find the planet ruling each person's Moon sign, look up the friendship between those two rulers, and you have a rough graha maitri score. It is a fast, reliable read of whether the two emotional cores are natural allies — and it is the kuta that most often shows up in ordinary conversation about whether two people "get along."
How to Check a Match Yourself
- Find the birth lunar mansion for each person — the nakshatra of their Moon.
- Determine the Moon signs and their ruling planets for both charts.
- Use an Ashtakuta calculator (or the classical tables) to score the eight kutas and add the total out of 36.
- Read the total against the thresholds above, then examine any failed critical kuta — especially nadi and bhakoot.
- Weigh the score together with the actual chart-by-chart synastry of the two people, and let the charts have the final word.
The 36-point score is the tradition's way of making the invisible visible — a number that summarizes eight dimensions of two people's emotional lives. For the deeper, chart-by-chart story, read how two charts interact, and to learn what the 7th house and the spouse's chart reveal, continue with the D9 spouse chart.