Why Indastro Gives a Different Kundli Score Than Other Sites

You checked your compatibility on Indastro and got 26/36. Then you tried another calculator and it said 28/36. Now you are not sure which one to believe, or whether the disagreement means something is seriously wrong with the match.

It does not. The difference is technical. Here is exactly why it happens and what it actually means for your match.

The short answer: ayanamsa

Every Vedic astrology calculation starts with converting a birth time into a planetary position. That conversion requires a reference point called the ayanamsa — the gap between the tropical zodiac and the sidereal zodiac used in Vedic astrology.

Different platforms use slightly different ayanamsa values. Indastro uses the Lahiri (Chitrapaksha) ayanamsa, which is the official standard adopted by the Indian government for astronomical purposes and the most widely used ayanamsa in contemporary Vedic practice. Most major platforms — AstroSage, mPanchang, KundliMilan — also default to Lahiri.

But "Lahiri" is not a single fixed number. It is recalculated periodically, and different software implementations may use slightly different sub-versions. A difference of 0.3 to 0.5 degrees in ayanamsa shifts nakshatra boundaries by a similar margin. For someone born near the edge of a nakshatra, that shift changes which nakshatra they fall in.

And nakshatra determines three of the eight kootas — Gana, Graha Maitri, and Nadi — which together carry up to 16 of the 36 possible points. A nakshatra boundary shift can therefore move the total by 1 to 4 points.

The specific kootas that change

Not all eight kootas are sensitive to ayanamsa differences. Varna and Vashya are relatively stable. The three that show variation are:

Nadi (8 points). Nadi is determined entirely by nakshatra. Each nakshatra belongs to one of three Nadi types: Aadi, Madhya, or Antya. If both partners share the same Nadi type, Nadi dosha is present and those 8 points drop to zero. If a boundary case shifts one partner's nakshatra, their Nadi classification changes, and the score jumps or drops by the full 8 points.

Graha Maitri (5 points). This is determined by the Moon sign lord — which comes from the Rashi, which comes from the nakshatra. A nakshatra boundary shift can change the Moon sign, which changes the planetary lord, which changes whether the two lords are friends, neutral, or enemies.

Gana (6 points). Gana (Deva, Manushya, Rakshasa) is assigned per nakshatra. A boundary case can shift the Gana classification entirely.

This is why a 2-point score difference between platforms is actually telling you something specific: one of the partners has a birth time or place that places them near a nakshatra boundary, and the two platforms have resolved that boundary differently.

What the score difference does not mean

It does not mean one platform has a better algorithm. Both are applying standard Ashtakoot methodology. The disagreement is in the underlying astronomical data, not in the compatibility logic.

It does not mean the match is borderline or uncertain. If both scores place you in the same interpretation band — both above 24, for example, or both between 18 and 24 — the practical verdict is identical.

It does not require you to pick a "correct" platform and dismiss the other. What it does require is checking whether the boundary case actually matters: is one of you near the edge of a nakshatra? If yes, a precise birth time matters more than which platform you used.

The case where the difference does matter

If one score is 17/36 and another is 20/36, the ayanamsa difference has crossed the 18-point threshold — the traditional minimum for most families. That is a material difference, not a rounding issue.

In this case, the right move is not to keep trying calculators until you find one that says what you want. The right move is to determine which nakshatra is correct for the boundary-case partner. That requires:

• A precise birth time (to the minute, not an approximation)
• A birth place with correct coordinates
• A calculation using the exact Lahiri ayanamsa value for the birth year

If the birth time itself is uncertain — recorded only as "morning" or "around 8 AM" — no calculator can resolve the boundary case definitively, and the score range rather than a single number is the honest answer.

What to actually check at any score

Whether your Indastro score is 26 or 28, the score total is only part of the picture. The two factors that determine whether a match with this score is genuinely safe to proceed with are:

Nadi dosha status. If both partners share the same Nadi type, those 8 points are gone and the dosha is present. The score total you see already reflects this — but what most calculators do not tell you is whether any of the seven classical Nadi dosha cancellation conditions apply to your specific pair. A cancelled Nadi dosha changes the picture significantly.

Bhakoot dosha status. Bhakoot carries 7 points and is determined by the Rashi combination. Specific Rashi pairs create Bhakoot tension. Again, the score reflects this, but the cancellation conditions are not shown on most platforms.

If both Nadi and Bhakoot are clean at your score — whether that is 26 or 28 — the match is solid by classical standards and the 2-point calculator difference does not matter. If either dosha is present and uncancelled, the score total becomes secondary to the dosha analysis.

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