Relationship Compatibility Is Ashtakoota and the 7th

Nadi is the heaviest, 8 points, and it fails when both Moons share Adi, Madhya, or Antya. Bhakoot is 7 and compares the Moon signs' distance. Gana is 6 and compares Deva, Manushya, and Rakshasa groups. Graha maitri is 5 and compares the natural friendship of the two Moon-sign lords. Yoni is 4, tara 3, vashya 2, varna 1. A total near 18 is the customary caution line, not a statute. Two people at 28 with both 7th lords in the 8th are not a simple success, and two people at 17 with a clear Nadi exception and strong D9 are not a simple failure. The digit method has no place to put these exceptions.

The Moon-sign lords use the natural friendship table. The Sun is friendly with the Moon, Mars, and Jupiter, and hostile to Venus and Saturn. Venus is friendly with Mercury and Saturn, and hostile to the Sun and the Moon. Saturn is friendly with Mercury and Venus. That table is graha maitri, one koota, and it also explains why some Moon signs are called easy company. It is still only 5 points. Venus in each natal chart, the karaka of marriage, can contradict a friendly maitri score if Venus is debilitated in Kanya. Dasha timing, especially Venus's twenty years or the 7th lord's antardasha, decides when the match is lived, which a birthday digit does not time.

The Moon can change nakshatra in a day. A matching score without both birth times fails at the boundary and can invent a Nadi dosha or hide one. The lagna, needed for the 7th house, fails even sooner, about every two hours. Jyothish SI casts both sidereal charts with Lahiri ayanamsa and Swiss Ephemeris when the cities and minutes are known. A free account can generate a kundli. The compatibility work is those two charts and the eight kootas. A life-path comparison can remain a parlor game beside it, without being asked to carry a marriage.