A guna milan score of 21 out of 36 falls in the classical band “Acceptable”. The tradition accepts this match. Where points were lost matters more than the number.
Some context most sites won't give you: we computed every one of the 11,664 possible nakshatra-pada pairings with a real scoring engine, and 683 of them (5.9%) land on exactly 21. A score this common is not a cosmic verdict — it is a row in a table. What matters is where the points went missing.
Where the points usually go
The two heaviest kootas are nadi (8 points) and bhakoot (7). A single nadi or bhakoot dosha can drag an otherwise fine match down by a third of the total — and both have classical cancellation rules that quick calculators skip. If your 21 includes a cancelled dosha, your effective score is 29 or 28, not 21. Gana (6) and graha maitri (5) are the next heaviest; losses there are temperament questions to discuss, not doom.
What to do with this number
Tradition accepts 21/36. Check whether any points were lost to a dosha with a cancellation, then read the full charts — dasha timing and the seventh houses say more about married life than the count does. If anyone uses this number to sell you a remedy, walk away: the texts themselves don't.
Related: nakshatra & rashi compatibility guides · score 20 · score 22
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