Kundli matching (Gun Milan): how compatibility is scored
If you've heard that a couple's charts 'matched 28 out of 36', you've already met Gun Milan — the most widely used compatibility system in Vedic astrology. It compares two people's birth charts and produces a single number out of 36, built from eight separate tests. The system is called Ashtakoota, which literally means 'eight factors'. Each factor (koota) checks a different layer of compatibility, from temperament to values to long-term stability. The appeal is obvious: it makes something as messy as relationship fit feel measurable. The catch — which we'll come back to — is that a number can only ever describe part of a relationship. Here's how the scoring actually works.
The foundation: the Moon's nakshatra
Almost everything in Gun Milan is calculated not from your Sun sign but from your Moon — specifically the Moon's sign (rashi) and nakshatra (birth star) at the moment you were born. Vedic astrology treats the Moon as the mind and emotional nature, so it makes sense that emotional compatibility is read from there. Because the Moon moves quickly, accurate birth dates and times matter for both people; a rough guess can shift the nakshatra and change the score. Once both Moons are placed, each of the eight kootas is scored, and the points are added up.
The eight kootas and their points
The eight factors aren't weighted equally — they carry different maximum points, totalling 36. Varna (1 point) looks at a basic level of nature or 'work temperament' and ego compatibility. Vashya (2 points) measures mutual attraction and who naturally influences whom. Tara (3 points) checks the health and well-being of the match using the birth stars. Yoni (4 points) is the famous one — it assigns each nakshatra an animal symbol and reads physical and instinctive compatibility. Graha Maitri (5 points) compares the friendship between the two Moon-sign rulers — intellectual and emotional rapport. Gana (6 points) sorts people into three temperaments (deva/gentle, manushya/human, rakshasa/intense) and checks how they blend. Bhakoot (7 points) reads the relationship between the two Moon signs and is tied to overall harmony and prosperity. Nadi (8 points), the heaviest factor, relates to health, constitution, and the vitality of any children.
What the score ranges suggest
Add the eight kootas and you get a total out of 36. As a rough guide: below 18 is traditionally considered a weak match in this system; 18 to 24 is acceptable and common; 25 to 32 is regarded as a very good match; and above 32 is rare and seen as exceptional. Note that perfect 36/36 matches are actually viewed with some caution by experienced astrologers, because total similarity can mean two people are so alike they lack the friction that helps a couple grow. The score is a guide to ease, not a measure of love — plenty of strong, happy relationships sit in the middle of the range, and the number says nothing about effort, communication, or shared values that two people build over time.
A worked example
Imagine two people, Aarav and Meera. Their astrologer runs Ashtakoota and the breakdown comes out like this: Varna 1/1, Vashya 2/2, Tara 1.5/3, Yoni 3/4, Graha Maitri 4/5, Gana 6/6, Bhakoot 0/7, Nadi 8/8. Adding those gives 25.5 out of 36 — a good match overall. But notice Bhakoot scored 0. That's what's called a Bhakoot dosha, a flag rather than a failure. The high Graha Maitri and full Gana and Nadi scores suggest strong rapport and compatible constitutions, while the Bhakoot flag is something a careful astrologer would examine in the wider chart rather than treat as a dealbreaker. The single number, 25.5, hides this nuance — which is exactly why the breakdown matters more than the total.
Nadi and Bhakoot dosha, explained without the fear
Two flags get talked about far more than the others, often with unnecessary alarm. Nadi dosha occurs when both partners share the same Nadi (one of three constitutional types), costing all 8 of those points; it's traditionally associated with health and progeny concerns. Bhakoot dosha arises from certain difficult angles between the two Moon signs and is linked to financial and emotional friction. Here's the important part: both doshas have well-established cancellations (parihara) in classical texts — for example, sharing the same Moon sign or having the right relationship between the star-lords can nullify Nadi dosha entirely. A good astrologer checks for these before ever calling a match a problem. A low score on one factor is information to look into, not a sentence to fear.
A chart is a starting point, not a verdict
This is the part worth holding onto. Gun Milan is a thoughtful, centuries-old framework for thinking about compatibility, and it can genuinely surface things worth discussing — different temperaments, different emotional rhythms, different needs around security. But it cannot measure whether two people are kind to each other, willing to grow, honest in hard moments, or aligned on the life they actually want. Those are the things that decide relationships, and no chart contains them. Treat a low score as a prompt for an honest conversation, not a reason to walk away from someone you love — and treat a high score as encouragement, not a guarantee that you can coast. The chart describes the raw material; the two of you build the relationship.
Frequently asked questions
Is a low Gun Milan score a reason not to marry someone? No — it's best read as a list of areas to understand and discuss, not a yes-or-no answer. Many happy couples have modest scores, and several traditional doshas have recognised cancellations. If a score worries you, the useful next step is to look at the full breakdown and the wider charts with someone experienced, rather than reacting to the total alone.
What if our birth times are uncertain? Because the whole system rests on the Moon's nakshatra, and the Moon moves quickly, an uncertain birth time can shift the result. The sign-level factors are more forgiving than the nakshatra-level ones, but for a reliable score you want accurate dates, times, and places for both people. If a time is genuinely unknown, treat any matching result as approximate.
Does a 36/36 score guarantee a perfect marriage? It doesn't. A flawless score is rare and even draws caution from some astrologers, because two people who are extremely similar can lack the gentle friction that helps a partnership stretch and grow. Compatibility on paper is a helpful starting condition, but the day-to-day work of listening, compromising, and showing up is what actually makes a relationship thrive.
Can Gun Milan be used for non-marriage relationships? The traditional system was designed for marriage compatibility, but the underlying ideas — emotional rapport, temperament, shared rhythm — apply to any close relationship. In LuckMap's Love Match you can run a full Ashtakoota breakdown along with a plain-language read of what each factor means for the two of you, so the score becomes a conversation starter rather than a mysterious number.