Traditional horoscope matching, explained honestly

A long tradition

In many Indian families, when a marriage is being considered, the horoscopes of the two people are compared. The practice goes by many names: kundli milan or guna milan in much of North and West India, porutham in Tamil Nadu and Kerala, jathaka matching in Karnataka and Andhra Pradesh. Its place in a family’s decision ranges from decisive, to one consideration among many, to none at all.

This guide explains how the main traditional systems work. It also says plainly what they are not.

What it’s based on

Traditional matching mainly compares each person’s Moon at birth: its nakshatra (one of the 27 lunar mansions) and its rashi (zodiac sign). These depend on the date, time and place of birth. Because the Moon moves through a nakshatra in about a day, an accurate birth time matters; a few hours’ difference can change the result.

Ashtakoot (eight factors)

The Ashtakoot or Ashta-koota system, the most widely used in North and West India, compares eight factors (kootas), each worth a set number of points (gunas), for a maximum of 36:

Traditional guidance often treats 18 or more out of 36 as acceptable, and higher scores as more favourable. Particular combinations, such as Nadi dosha (both in the same Nadi) or Bhakoot dosha, are often given special weight, and texts describe exceptions that cancel them.

Porutham (South Indian matching)

In Tamil Nadu and Kerala, matching usually uses a set of ten poruthams (agreements), such as Dina, Gana, Mahendra, Stree Deergha, Yoni, Rasi, Rasi Adhipathi, Vasya, Rajju and Vedha, each judged as agreeing or not, rather than scored out of 36. Rajju and Vedha are usually treated as particularly important.

Mangal dosha

Many families also look at Mangal dosha (also Kuja dosha or being manglik): the position of Mars in particular houses of the birth chart. Customs differ on how it’s assessed, whether it’s considered cancelled when both partners have it, and how seriously to take it. Astrologers themselves disagree widely on it.

What matching is not

It’s important to say this clearly:

• It is not scientific. There is no scientific evidence that astrological compatibility predicts the success, happiness or health of a marriage.
• It is not a guarantee. High scores don’t ensure a good marriage; low scores don’t doom one.
• It is not a measure of a person’s worth. No one is “unmarriageable” because of a chart.
• It must never be a reason for discrimination or pressure. Using a chart to shame, exclude or coerce anyone is wrong.

Using it wisely, if you use it at all

If your family values traditional matching:

1. Get the birth details right, especially the time, before drawing conclusions.
2. Remember it’s one input among many. Values, kindness, communication, health, education, finances and the couple’s own wishes matter far more.
3. Consult someone thoughtful. A good traditional astrologer looks at the whole picture and the exceptions, not just a number.
4. Let the couple lead. It’s their marriage.
5. Respect families who don’t use it. That’s a valid choice too.

Inclusive by principle

OIOA does not discriminate on religion, caste, creed, community, gender, language, region or colour. Its match-making compares two profiles’ birth details using a traditional method; it doesn’t filter, rank or recommend anyone by caste or community.

In OIOA

OIOA’s match-making compares two saved profiles on your device, using the Jain Jyotish nakshatra method: Tara in both directions, rashi pattern, and nakshatra-lord and rashi-lord relationships. It gives a plain-language reading rather than a guna total or a percentage. It’s clearly labelled as traditional guidance, and the disclaimer applies. Please treat results, which concern two people’s personal data, with discretion.

Common questions

Is a low guna score a reason to call off a marriage?

That is for the couple and their families to decide, and many happy marriages have low scores. A score is a traditional indicator, not a verdict, and astrologers themselves consider exceptions that change its meaning.

What is Nadi dosha?

In Ashtakoot matching, both people having the same Nadi, one of three categories derived from the birth nakshatra, is called Nadi dosha. It is given the highest weight, eight points, and texts list conditions under which it’s considered cancelled.

Is horoscope matching used in all communities?

No. It’s most common in some Hindu and Jain families, and many families of every community don’t use it at all.

Can matching be done without a birth time?

A basic match using the Moon’s nakshatra is often possible from the date and place, but it may be unreliable on days when the Moon changes nakshatra. Many astrologers prefer an accurate time.

Are the results private?

They concern two people’s personal data and should be handled with discretion. OIOA calculates them on your device; the privacy policy explains what is stored.

Key terms

• Kundli: a birth chart.
• Guna: a point in Ashtakoot matching; 36 in total.
• Koota: one of the eight Ashtakoot factors.
• Porutham: an agreement in South Indian matching.
• Dosha: a traditionally unfavourable combination.
• Manglik: having Mars in certain positions in the birth chart.

A word to parents

If you’re a parent using matching for a son or daughter, please hold the result lightly. The young people concerned are the ones who will live the marriage. Traditional matching can be a way of seeking blessings and reassurance, but it should never override their consent, their wellbeing or their own sense of who is right for them. Many families today use matching, if at all, as one gentle input in a conversation in which the couple’s own voice comes first.

Above all, kindness and the couple’s own wishes should guide the decision.