Thirumana Porutham: Tamil Star Matching (10 Poruthams) Explained

Thirumana porutham is the Tamil (South Indian) method of checking marriage compatibility between a prospective bride and groom. It compares their birth star (nakshatra) and moon sign (rasi) across ten specific factors — the 10 poruthams — and produces a score out of 10. A higher score signals better traditional compatibility, but one porutham, Rajju, is treated as more important than the total: if both partners fall in the same Rajju group, astrologers flag it regardless of how well everything else matches.

What Exactly Does Thirumana Porutham Compare?

Thirumana porutham looks only at nakshatra and rasi — not the full birth chart, not planetary dashas, not the houses. That is what makes it fast: you need just the date, time, and place of birth for both partners to derive their birth star and moon sign, and the rest follows from fixed tables. This is different from, and simpler than, the North Indian Ashtakoota Gun Milan system, which scores compatibility out of 36 across eight kootas using largely the same underlying birth-star data but a different weighting. If you have seen a "36 guna" score quoted for a match, that is the Ashtakoota method; thirumana porutham is the parallel South Indian tradition, most widely used in Tamil Nadu, and also referenced in Malayalam and some Telugu households. In practice, Tamil, Malayalam, and Telugu families used to lean on a family astrologer with printed panchangam tables to work this out by hand; today the same tables sit behind an online kundli matching tool, so the calculation takes seconds instead of a visit.

What Are the 10 Poruthams, and What Does Each One Check?

All ten poruthams are derived from the couple's nakshatra and rasi. Each one reflects a different, specific area of married life rather than a general 'compatible or not' verdict.

How Is the Porutham Score Calculated?

Each of the ten poruthams is graded Uthamam (best, worth 1 point), Madhyamam (medium, worth half a point), or Adhamam (unfavourable, worth 0), and the ten scores are added up for a total out of 10.

• 6.5 and above — Excellent
• 4.5 to 6.5 — Good, generally considered favourable
• 3.0 to 4.5 — Average, worth reviewing which specific poruthams fell short
• Below 3.0 — Low compatibility

Why Does Rajju Porutham Get Special Treatment?

Two checks get flagged separately from the total score because tradition treats them as serious even inside a high overall number. The first is Rajju dosham, which appears when both partners fall into the same Rajju group — a mark on the couple's shared longevity that a good total elsewhere does not cancel out. The second is Rasi 6/8 (shashtashtama), where the two rasis sit six and eight signs apart. Both are worth a closer look with an astrologer rather than a decision based on the headline score alone — the same way North Indian ashtakoota matching treats Nadi dosha as close to a veto even inside a strong 36-guna total.

Do All Ten Poruthams Matter Equally?

Not in practice. Tamil astrologers generally treat Dina, Gana, Rasi, Rajju, and Yoni as the five poruthams that carry the most weight, with Rajju and the 6/8 rasi flag sitting above the rest regardless of the total score. Mahendra, Stree Dirgha, Rasi Athipathi, Vasya, and Vedha still count toward the total but are less often treated as deal-breakers on their own. This is why two matches with the same total score out of 10 can still be read very differently — the total tells you how much matched, not which parts matched.

What About Chevvai (Mars) Dosham in Thirumana Matching?

Alongside the ten poruthams, Tamil matching separately checks Chevvai dosham — the Mars affliction that North Indian astrology calls Mangal or Manglik dosha — for each partner. The match is considered balanced when both partners carry Chevvai dosham or when neither does. If only one partner has it, that imbalance, not the dosha itself, is traditionally what calls for remedies (parihaaram) before the wedding is finalised.

Is a High Porutham Score Enough to Finalise a Marriage?

Not on its own. Thirumana porutham, like ashtakoota gun milan, is a screening step built from nakshatra and rasi alone — it does not look at either partner's planetary dasha, upcoming transits, or the deeper chart factors a full matching consultation reviews. Treat a high score as a reasonable green light to move forward, and a low or flagged score as a reason to look closer with a knowledgeable astrologer, not automatically as a reason to walk away.

Can You Check Porutham Without an Exact Birth Time?

Because the method relies on nakshatra and rasi rather than the complete chart, an approximate reading is possible from just the date and place of birth. But birth time still matters: a birth that falls close to the boundary between two nakshatras or rasis (a 'sandhi' birth) can shift which star or sign actually applies, which in turn changes which poruthams apply and how they score. If you are working from a name and an approximate date rather than a confirmed birth time, treat the result as directional rather than final.

How to Check Your Thirumana Porutham on Daanyam

1. Have both partners' date, time, and place of birth ready — the more precise the birth time, the more reliable the nakshatra and rasi the whole reading is built on.
2. Run the match through Daanyam's kundli matching tool, which computes the underlying birth star and rasi data your porutham reading depends on.
3. Read the individual poruthams, not just the total — a good overall score with a Rajju or 6/8-rasi flag still deserves a closer look.
4. Check the Chevvai dosham status for both partners and note whether it is balanced.
5. Bring the results to a family astrologer or an online consultation for anything scored Average or lower, or wherever a flag comes up.

For Tamil, Malayalam, and diaspora families arranging a match by tradition rather than the North Indian 36-guna method, thirumana porutham gives a fast, culturally familiar first read: ten checks, a score out of ten, and two flags worth taking seriously no matter what the total says. Treat it as the start of the conversation between two families, not the end of it. Whichever system your family follows — thirumana porutham or the North Indian 36-guna Ashtakoota — the underlying birth-star and rasi data is the same, so there is nothing wrong with checking a match both ways before deciding.