Nadi dosha — how often it appears

What this tool computes

Each of the twenty-seven nakshatras belongs to one of three nadis: Adi, Madhya or Antya. Nine stars in each group, and the assignment does not vary between schools. Nadi koota awards its 8 points when the two birth stars fall in different groups and nothing at all when they fall in the same one. That zero is what the word dosha refers to here. This tool tells you which group each star sits in, whether they coincide, and which of the documented cancellation rules would apply to your particular pair.

The number that rarely accompanies the verdict

Three groups of equal size means two stars land together roughly one time in three. Scored across all 11,664 ordered pairings of birth star and pada — the entire population, not a sample — 33.3% carry nadi dosha.

One third of equally weighted possible pairings return zero. This is not a measured rate among real couples or a prediction.

That is arithmetic rather than a survey, and it can be checked without a computer. It also explains why nadi attracts more cancellation rules than any other koota: it carries the largest single block of the thirty-six points, so a zero here can decide a total on its own, and traditions have spent centuries recording grounds on which to set it aside.

What the result does and does not mean

A same-nadi result means two birth stars fall in the same one of three groups. That is all it means. It is not a forecast, and nothing on this page will tell you what will happen to a marriage.

Where practitioners actually differ is the cancellations. Raman and several panchanga traditions set nadi aside when the Moon signs agree while the stars differ, when the same planet lords both Moon signs, or when the two Moon-sign lords are mutual friends. The GBP panchanga dissents from the entire list and holds that same nadi should not be accepted whatever the guna score. We report which rules fired and name the source of each. We do not claim any of them works — a prescribed remedy is a thing a tradition prescribes, and that is how it is reported.

Does this need our birth times?

Only the date and enough time to fix the birth star, which moves roughly once a day. The pada changes every few hours, so a remembered time can land a chart on the wrong side of a boundary. If a nadi result sits close to a boundary, that is worth knowing before anyone acts on it.

The astrologer quoted a Sanskrit verse. Should that settle it?

Rāśyoraikye tu nāḍyaikyaṁ — if the Moon signs agree, sameness of nadi need not be considered — is quoted constantly. It has not been located in a named printed edition of Muhurta Chintamani, the Brihat Parashara Hora Shastra or Jataka Parijata. It is treated here as traditional and flagged as unverified wherever it applies.

What should we ask next?

First verify both birth stars and their Nadi assignments. Then ask which cancellation rules the astrologer applies and which text each one comes from. Reports can disagree because of inputs as well as exceptions. Separating those steps makes a verdict checkable against a second one.