In Tamil society, evaluating horoscope compatibility (திருமணப் பொருத்தம்) prior to marriage is an ancient practice combining observational astronomy, psychological classification, and ancestral tradition. Rather than relying on arbitrary predictions, the 10 match system systematically evaluates birth star (Nakshatra) positions.
Astrological Compatibility vs. Modern Psychology
Astrological matching categorizes human temperaments into three broad Gana groups (Deva, Manusha, Rakshasa), which closely map to modern psychological personality archetypes. Matching compatible Ganas aims to reduce long-term marital friction.
Understanding Rajju Porutham
The most critical of the 10 matches is Rajju Porutham, which evaluates biological longevity and health compatibility. Nakshatras are divided across five bodily divisions (Head, Neck, Stomach, Thigh, Foot). When a couple shares the same Rajju node, traditional rules advise against the alliance.