Guide
The 10 poruthams of Tamil marriage matching, explained
AI Overview / TL;DR
Tamil thirumana porutham is ten classical checks (dina through vedhai). AstroYogam scores them from Lahiri sidereal nakshatra and rasi with deterministic tables. A partial match is guidance, not a verdict.
- Ten classical checks - not a single percentage invented by an app.
- Different rules from North Indian 36-point guna milan.
- Engine computes; AI only narrates.
- Elders may weight rajju heavily - still not fate.
Thirumana porutham compares two horoscopes using a fixed set of ten traditional checks - mainly from each partner's janma nakshatra and rasi. It is not the same system as North Indian ashtakoota "guna milan" points, even when both are called "matching." This guide explains each porutham in plain language, then how AstroYogam computes matches from engine-derived positions (not from AI guesses).
Porutham vs North Indian guna milan
North Indian ashtakoota is usually scored out of 36 points. Tamil thirumana porutham uses ten discrete checks (dina, gana, mahendra, stree dheergam, yoni, rasi, rasyadhipathi, vasya, rajju, vedhai). You cannot convert "28/36" into "8/10" - the systems are different.
1. Dina (தினம்)
Dina porutham is a classical check based on the tara-style count between the two janma nakshatras. In traditional Tamil astrology it is associated with comfort and longevity of the pair - a classical count rule, not an AI prediction.
2. Gana (கணம்)
Each nakshatra is classed as Deva, Manushya, or Rakshasa gana. Traditional texts treat gana harmony as a temperament match. A Deva-Rakshasa clash is classically serious - in AstroYogam it is still a matched/unmatched flag, not a fatal sentence.
3. Mahendra (மகேந்திரம்)
Mahendra uses a fixed nakshatra-distance table. Classical lore links it to progeny and growth - we attribute that meaning to tradition; the engine returns a match boolean only.
4. Stree Dheergam (ஸ்திரீ தீர்க்கம்)
A count-based check of where the bride's nakshatra stands relative to the groom's. Traditional Tamil astrology associates it with marital stability - again as guidance, not fate.
5. Yoni (யோனி)
Nakshatras carry classical animal (yoni) symbols. Some pairs are listed as enemy yonis. Treat this as a traditional affinity table - not a biological claim.
6. Rasi (ராசி)
Rasi porutham checks the relationship of the two Moon signs (including classical 6/8-style tensions). It uses Moon-sign tables - not a full D1 house-overlay synastry matrix.
7. Rasyadhipathi (ராசியதிபதி)
Checks whether the two Moon-sign lords are the same planet, friends, or enemies on pinned friendship tables in the engine.
8. Vasya (வசியம்)
Classical tables of which rasis "influence" which. Traditional commentary frames this as mutual harmony or pull between Moon signs.
9. Rajju (ரஜ்ஜு)
Nakshatras group into rajju (limb) sets. Sharing the same rajju is classically a serious dosha; many Tamil families treat it as a must-pass. AstroYogam flags match/fail with severity only - never fatalistic marriage verdict copy.
10. Vedhai (வேதை)
Certain nakshatra pairs are classical vedha (obstruction) pairs. The engine checks pinned pairs. Tradition reads this as an affliction flag - guidance, not destiny copy.
How AstroYogam computes porutham
For each person the engine computes janma nakshatra and Moon rasi with Lahiri ayanamsa. Ten pure functions apply pinned tables. AI may explain the matched/unmatched list - it cannot change the tables. Saved charts can keep birth details in a browser E2EE vault - a real trust property for matchmaking data.
Score bands in the engine: without a critical dosha, recommended is about 7+ matches and acceptable about 5+. Some failures can be cancelled by coded parihara rules (for example samasaptama). Compare a real pair in the app for the full result.
What a "6 out of 10" actually means
Six matches means a majority of classical checks agree. It is neither a promise of happiness nor a curse. Elders may weight rajju more than a flat score. AstroYogam's brand voice: calm traditional guidance - not scary predictions.
Conclusion
Thirumana porutham is a set of ten classical checks. AstroYogam computes them from engine-derived nakshatra and rasi. Treat results as guidance for family discussion - not a verdict. Use the public porutham landing and the in-app tool to compare two charts.
Key Takeaways
- ✓10 poruthams are not the same as 36-point guna milan.
- ✓Rajju is classically serious - never fatalistic copy here.
- ✓Engine tables; AI narrates only.
Frequently Asked Questions
Family custom varies. Many look for a majority plus special attention to rajju. There is no universal legal threshold.
Many Tamil families treat it as critical. It remains guidance, not fate.
Different systems (10 checks vs about 36 points). Scores are not interchangeable.
Nakshatra and rasi need the Moon's position. Without a reliable birth time, boundary errors are possible. Prefer a known time; the engine does not invent birth time.