It is the zero score in Nadi koota, which happens when both partners' birth nakshatras fall in the same nadi — Aadi, Madhya or Antya. Because Nadi carries eight points and is all-or-nothing, it is the largest single loss in the system.

Is Nadi dosha always disqualifying?

No. Classical practice recognises several cancellations, most commonly a shared Moon sign with different nakshatras, or a shared nakshatra with different padas, or both Moon-sign lords being the same planet. The calculator reports whether one applies rather than reporting only the dosha.

How many points does Nadi carry?

Eight out of 36 — the largest weight of the eight kootas, and nearly a quarter of the whole score.

Why do exact birth times matter for Nadi?

Nadi comes from the nakshatra, which the Moon crosses in about a day, so a rough time is usually enough for the nadi itself. But the pada-based cancellation needs the pada, and each pada is only about six hours — so a cancellation can be missed if the time is loose.

Nadi Koota and Nadi Dosha

नाड़ी कूट

What is Nadi dosha and is it always disqualifying?

Nadi koota carries 8 points of the 36, the single largest weight, and is derived from the birth nakshatra. Each nakshatra belongs to one of three nadis — Aadi, Madhya or Antya. If both partners share a nadi the koota scores zero, which is Nadi dosha. Classical practice recognises several cancellations.

Three nadis, nine nakshatras each

The twenty-seven nakshatras divide evenly into three nadis, named after the three doshas of Ayurveda — Aadi corresponds to vata, Madhya to pitta and Antya to kapha. The classical reasoning is constitutional: two people of the same nadi are held to share a constitution closely enough that the pairing is discouraged. Different nadis score the full eight points; the same nadi scores zero, and there is no partial score in between.

The cancellations, which are not rare

Several conditions are widely held to cancel Nadi dosha. The most cited are: both partners sharing the same Moon sign while having different nakshatras; both sharing the same nakshatra but falling in different padas; and the two Moon-sign lords being the same planet. Some traditions add further exceptions. These are ordinary classical provisions, not obscure loopholes — and because Nadi is an all-or-nothing eight points, whether one applies changes the total by more than a fifth.

Why Nadi is where the fear is concentrated

Nadi is the largest weight, it is all-or-nothing, and its failure is described in strong language in popular retellings. That combination makes it the single most common reason a family is told a match is impossible. The honest position is narrower: it is one test of eight, it depends entirely on two nakshatras, it has established cancellations, and classical practice weighs it alongside the seventh house, Venus, Mars and the dashas of both people. A guna score is a screen, and a screen is not a verdict.

Common questions

What is Nadi dosha?: It is the zero score in Nadi koota, which happens when both partners' birth nakshatras fall in the same nadi — Aadi, Madhya or Antya. Because Nadi carries eight points and is all-or-nothing, it is the largest single loss in the system.
Is Nadi dosha always disqualifying?: No. Classical practice recognises several cancellations, most commonly a shared Moon sign with different nakshatras, or a shared nakshatra with different padas, or both Moon-sign lords being the same planet. The calculator reports whether one applies rather than reporting only the dosha.
How many points does Nadi carry?: Eight out of 36 — the largest weight of the eight kootas, and nearly a quarter of the whole score.
Why do exact birth times matter for Nadi?: Nadi comes from the nakshatra, which the Moon crosses in about a day, so a rough time is usually enough for the nadi itself. But the pada-based cancellation needs the pada, and each pada is only about six hours — so a cancellation can be missed if the time is loose.