The five traditions of kundli matching, and who follows each

There are five documented traditions in play, they are separate rule sets and not five degrees of strictness, and no arbiter sits above them. People arrive at this looking for the correct method, which is a reasonable thing to want. A birth chart is a physical claim about where the planets were, and physical claims have right answers, so the scoring built on top of them ought to have one too. It does not. What follows is what each of the five actually says, where it is followed, and which of its choices are the ones that move a verdict.

Three conditions, and each rules something out

To count as a tradition on this page a reading has to be documented, complete enough to run unaided, and actually followed by a meaningful number of people in India today.

Documented means its tables can be checked against a text or a published specification, not against somebody’s recollection. That is a harder test than it sounds. Plenty of widely repeated rules turn out to have no locatable source — the verse everyone quotes for cancelling nadi dosha when the Moon signs agree is the famous example, recited constantly and not yet found in a named printed edition of Muhurta Chintamani, the Brihat Parashara Hora Shastra or in Jataka Parijata. A rule like that gets reported as traditional and flagged as unverified, because a verse everyone quotes and nobody can source is not a citation.

Complete means a chart goes in and a verdict comes out with nobody filling a gap by judgement. A school that leaves the hard case to the practitioner is a practice, not a specification, and it cannot be run over a population.

Followed is the condition that lets two calculation sources into a list of traditions, and it is the one people push back on. The reasoning is simple. A very large share of matching reports in circulation were produced by a program. The choices that program made are the rules the family received, whatever lineage the family believes it practises. Excluding those choices from a list of traditions would be tidier and would describe a country that does not exist.

What does the North Indian Charak reading actually say?

Eight kootas, 36 points, an acceptance line conventionally set at 18, and Mars judged from the ascendant using a house list that omits the 2nd. This is the tradition most people mean when they say guna milan, and it is the one most refused couples in North India were judged by.

The eight are weighted very unevenly. Varna carries 1 point, vashya 2, tara 3, yoni 4, graha maitri 5, gana 6, bhakoot 7 and nadi 8. The last two carry between them more than a third of the whole scale, which is why a great many refusals turn out to be a nadi or bhakoot failure with the other six kootas doing nothing to rescue the total.

The house list is the detail to carry away. The northern set omits the 2nd house because the verse it descends from omits the 2nd house. Not an oversight, not a simplification — a faithful reading of a specific text. The southern set omits the 1st for exactly the same kind of reason, from a different text. Once you know that, the two lists stop looking like a dispute about severity and start looking like what they are: two schools reading two verses.

How does the B. V. Raman southern reading differ?

Open Raman’s Muhurtha at the nadi section and the cancellation conditions are set out in his own words — same Moon-sign lord, mutually friendly Moon-sign lords, and others besides — with Hindu Predictive Astrology laying out the frame they sit in. Where a rule on this site says Raman, it says so because he wrote it down.

The differences from the northern reading sit in the house list, in the reference points Mars is judged from, in several koota tables and in the ayanamsa. This is not the northern method with a regional accent. It happens to use the same 36-point frame and it is a distinct set of rules inside it.

That explicitness is unusual, and it is the reason the southern reading can be implemented at all. A great deal of matching practice is transmitted by apprenticeship, and an apprenticed rule has no page number attached to it. Raman wrote for a readership that could not ask him a follow-up question, so he had to state his conditions instead of gesturing at them. The practical result, decades later, is that his reading is one of the few a program can carry without guessing — and being implementable without guessing is a different property from being correct. It is only the property that makes a tradition checkable.

The manglik difference is the one that shows up in the numbers. The southern reading judges Mars from the Moon and from Venus as well as from the ascendant, and that single choice does far more work than the house list does. It is also almost never stated on a report, which is how a family ends up with a southern manglik verdict and no idea why a northern astrologer cannot reproduce it.

Raman also specified his own ayanamsa, differing from Lahiri by more than a degree. Most software runs Lahiri regardless of which school it claims to be applying, which means a nominally Raman reading is often a Raman rule set on a Lahiri frame. For a Moon near a nakshatra boundary that is not a rounding difference; it is a different birth star. The ayanamsa question is worked through separately, because it affects every tradition on this page.

Why are two of the five pieces of software?

Because their conventions reach an enormous number of families, and a convention that reaches millions of reports is a tradition by any practical test. Drik Panchang and Astro-Vision are both long-established calculation sources, and they differ from each other about as much as two textual schools do.

Drik Panchang’s manglik house set is the merged one — effectively the union of the northern and southern verses. Pause on what that means. Take the houses the northern verse names, take the houses the southern verse names, keep everything in either list, and you have a set that appears in no single classical text on its own. It is not wrong; a union is a defensible editorial decision when you have two sources and want to be cautious. But a family reading a report built on it is following a specific documentable convention, and is usually unaware that it is one convention among several and not the tradition.

Astro-Vision sits at the opposite end and is the most conservative of the five on Mars, flagging only serious Kuja dosha. That is why its rate is the narrowest we measure: 11.7% of charts, against 73% under the widest profile in circulation, OP / SKU panchangas. Both are defensible readings of the tradition and the gap between them is a factor of six. You can see all five verdicts on one page in the manglik checker, which is the only way the spread stops being an abstraction.

Kerala leaves the 36-point system entirely

The Kerala reading works through the ten poruthams of the Dashakoota system, weighs the malefic burden on both charts through papasamyam, and treats Rajju as a refusal, not a deduction. Two of those three have no northern equivalent at all.

Rajju cannot be outweighed: it is not points lost from a total, it is a condition that stops the assessment, so a couple scoring well on eight poruthams and failing Rajju is refused and no total rescues them. A northern reader meeting this for the first time usually assumes it must be a very severe school. It is not, particularly; it simply has a category the northern system lacks, which is the veto. Ashtakoota has no veto at all — everything in it is points, and points can be made up elsewhere. Papasamyam is comparative, not absolute: the question is not whether a chart carries malefic affliction but whether the two charts carry comparable amounts of it, which means a heavily afflicted chart can be matched to another heavily afflicted chart on precisely that reasoning. A northern report contains nothing that behaves like either.

The Kerala textual tradition is its own thing too. Prasna Marga, written in Kerala in the seventeenth century, and Kalaprakasika on the electional side are the sort of sources this reading grew out of, and they are not the sources the northern Ashtakoota grew out of. Two literatures, not one literature with two accents.

So a couple can clear the 36-point scale comfortably and be refused in Kerala, and the reverse happens just as readily. The porutham tool runs the southern assessment on its own terms instead of translating it into kootas, because the translation is where the meaning goes.

Where do the five actually disagree?

Everywhere except the population totals. Run all 11,664 possible pairings of birth star and quarter through all five at the conventional 18-point line, and 56.4% trigger a tested difference or veto across the combined census checks. That is computed over the whole population of nakshatra-pada combinations, not a sample drawn from it, so there is no error bar on it.

Now look at the headline rates instead. Across all pairings, 66.7% clear the line under a typical reading and the mean total is 20.1 out of 36. Every one of the five accepts a share within a few points of that. Read only the summaries and you would conclude the schools broadly agree.

The schools agree closely on how many couples pass. They disagree about which ones.

The differences doing that work are boringly specific, and that is the good news, because a specific difference can be named in a conversation. Each of them is a setting — a house list, a reference point, one of two circulating lookup tables — fixed before your chart was opened and almost never printed beside the verdict, which is the subject of the settings a program fixes before it reads a chart. What belongs on a field guide is the other half of that fact: every one of those settings is held by a named school, in a known region, on the authority of a text somebody can be asked to produce. So a difference in output is a difference in lineage, not in strictness or in skill, and it can be traced back to whose reading it came from. There is a fuller account of how that divergence was measured and which axis contributes most.

Is one of the five the original?

No, and the texts are fairly clear about it. This is the question that arrives with every family that wants the argument settled by seniority, and the honest answer disappoints everyone equally.

The koota material is genuinely old. Nakshatra groupings, nadi, gana, yoni, the counted distance between stars — this is classical and appears across the literature. What is not classical, in the form calculators now use it, is the apparatus built on top: eight specific kootas, those specific weights summing to 36, a single total, and a pass mark at 18. Those are conventions of practice that settled into place later, and they settled differently in different places, which is exactly why we now have five of them.

The merged manglik house set makes the point sharply. It is the most widely shipped set in the country and it is the union of two verses, not the content of either.

Nobody wrote it down as doctrine.

It emerged, sensibly enough, from somebody trying to be careful with two sources. That is how most of the differences between these five arose: not schism, just separate careful people making separate reasonable calls and never meeting to compare.

Which is also why the seniority argument fails at home. If a relative says the tradition has been followed for a thousand years, the accurate reply is not that they are wrong. It is that several traditions have been followed for a long time, yours is one of them, and the family across the table is following a different one with the same claim.

What do all five agree on?

Rather more than the disagreement suggests, and knowing what is not in dispute makes the dispute much smaller. The 27 nakshatras and their boundaries are common ground. So are the nadi, gana and yoni assignments of each star, the 12 rashis and their lords, and the arithmetic of counting distances.

The consequence is practical. If you were told you have nadi dosha, you almost certainly do — the assignment is fixed everywhere and the calculation is not difficult. It is not where the disagreement lives. What varies is which cancellation conditions a school accepts, and there the sources genuinely diverge, with one panchanga tradition holding that no cancellation is available at all.

The same holds for bhakoot, for gana, and for the counted distance between two birth stars. Ask any of the five what the raw finding is and you will get one answer. Ask what follows from it and you will get five. That is a useful thing to know before a consultation, because it tells you which sentences in a report are open to question and which are simply arithmetic. Disputing the arithmetic wastes the appointment.

The five also agree on the astronomy, because the astronomy is not up for negotiation. Planetary positions come from the JPL DE440 ephemeris and the residual against it is well under an arcsecond. Nobody in this argument disputes where Mars was. They dispute which houses to count it in.

So the disagreement is narrower than the contradiction feels. It sits in a handful of named tables and a handful of named choices, all of which can be asked about by name. That is a much better position than “two astrologers, two answers”.

The reading that applies is the one both households follow

Which may well mean two readings. A household in Coimbatore and a household in Ludhiana are not arguing about a chart. They are applying two systems that were built separately and were never reconciled, and neither household is doing anything improper.

Finding out takes three questions. Which tradition does your reading follow — a careful practitioner names their lineage without hesitation. Which houses are being counted for Mangal dosha, and from which reference points — that pair separates the five in practice more sharply than anything else. And if the report came out of a program, which program, because that program’s conventions are the tradition your family received.

With those three answers you can say something specific. Not “the kundli did not match”, but “this chart was refused under a southern reading that judges Mars from Venus”. That is a sentence a second astrologer can engage with and a sentence your family can weigh, and it is a different object from a bare verdict in a way that is hard to appreciate until you have held both.

What we can supply is the comparison, not the ruling. The matching tool puts the five beside each other and, wherever they part company, names the school responsible and the text that school is reading, because every rule it fires cites the text it came from.

That attribution is the whole practical value of a field guide. Nobody needs to know in the abstract that five traditions exist. What changes a conversation is being able to say which of them produced the sentence in front of you, and to hear the other household name theirs. Two families who can each name their reading have stopped disagreeing about a chart; they are comparing two rule sets, both old, both documented, neither written with the other in view. Nothing about that comparison obliges either household to move, and it is not offered as a way of winning the argument. It simply replaces a verdict that arrived from nowhere with one that arrived from a named place, and a claim with an address behind it is the only kind anybody can examine.