Vedhai porutham uses a list of stars that are mutually repellent: twelve pairs, such as Ashwini and Jyeshta, and one set of three, Mrigashira, Chitra and Dhanishta. Kalaprakasika (1917, p. 76) says the bride's and the groom's birth stars should not be in the same set. If they are not, Vedhai agrees. It is a different table from the transit Vedhai used for planets.
☕ How Vedhai is checked
Vedhai uses one fact about each person: the birth star (janma nakshatra), the star the Moon was in at birth. The book lists thirteen sets of stars it calls "mutually repellent": twelve pairs and one set of three. Every one of the 27 stars is in exactly one set.
Look up the bride's star and the groom's. If they are in the same set, Vedhai does not agree. If they are in different sets, it agrees. Nothing is counted, so it does not matter whose star you look up first. A shared birth star is not one of the listed sets; the book treats a shared star on a page of its own.
The same word has another use. Kalaprakasika also has a transit Vedhai (ch. XXXVI): a table of houses in which one planet cancels another planet's transit, counted from the Moon. The app computes neither for matching. Same word, different table.
Nava Panchangam now matches two charts by these ten poruthams: sign in and open Marriage matching at navapanchangam.com/matching for a Nava verdict. This page explains the rule as the book gives it.
The thirteen sets, and the rule
- Ashwini, Jyeshta
- Bharani, Anuradha
- Krittika, Vishakha
- Rohini, Swati
- Ardra, Shravana
- Punarvasu, Uttara Ashadha
- Pushya, Purva Ashadha
- Ashlesha, Moola
- Magha, Revati
- Purva Phalguni, Uttara Bhadrapada
- Uttara Phalguni, Purva Bhadrapada
- Hasta, Shatabhisha
- Mrigashira, Chitra, Dhanishta
- The two stars in the same set: Vedhai does not agree
- In different sets: Vedhai agrees
- No counting and no direction: the answer is the same either way
- One exception about the two Moon signs sets Vedhai aside (p. 76)
- Not the transit Vedhai of chapter XXXVI, which is about planets
Frequently Asked Questions
What is Vedhai porutham?
One of the ten poruthams of Tamil marriage matching. Kalaprakasika lists twelve pairs of stars and one set of three as mutually repellent, and says the two birth stars should not be in the same set.
Which stars form the set of three?
Mrigashira, Chitra and Dhanishta. Every other star has exactly one partner, for example Ashwini and Jyeshta, or Magha and Revati.
Is this the same Vedhai as in planetary transits?
No. Kalaprakasika uses the word twice. The transit Vedhai (ch. XXXVI) is a table of houses counted from the Moon, in which one planet cancels another planet's transit. The marriage Vedhai is a list of star sets. The app does not compute the marriage Vedhai.
Can Vedhai be set aside?
The book gives one exception, about the two Moon signs and their lords, that sets Vedhai aside together with Rajju, Ganam and Rasi (p. 76). It has its own page in this series.
From the source
How Vedhai sits beside Rajju, what the page leaves out, and where to read next.
🧩 Every Vedhai set sits inside one Rajju group: our reading
Put the Vedhai sets next to the five Rajju groups of p. 75 and each set falls inside a single group. Ashwini and Jyeshta are both in the feet group; Mrigashira, Chitra and Dhanishta make up the whole head group. This is our reading of the two tables, not a line of the book. It means that, by these two tables, two stars in the same Vedhai set are also in the same Rajju group. The reverse is not true: many stars share a Rajju group without being a Vedhai pair.
✂️ What this page leaves out
The book words the rule as a bar on the marriage, and elsewhere attaches a one-line outcome to Vedhai. These pages state the check only: whether the two stars are in the same set. The book's own spellings are older (Aslesha, Sravishta); the names here use today's usual spellings.