It had been, the Vaidyas were alleged to know Astrology, Mantra Shastra and KarmaKanda besides his or her own skills in Ayurveda. That is; the concepts of Astrology and Ayurveda got mingled at the same time. This multi-discipline expertise has contributed Ayurvedic flavor in formation of Astrological rules for estimating compatibility between are spouses. While the emotional attributes of the individuals are; the biological characteristics are vital.