It was after Shantai was given in adoption that Dasaratha got married to Sumitra and Kaikeyi with the hope of getting healthy children . As he had no issue even after that Dasaratha arranged for the Putrakameshti Yaga on the advice of sages . It was Rishyasringa who performed the Yaga and enabled Dasaratha to beget four sons .
The unknown story in the Ramayana highlights that Shantai was Sri Rama ' s elder sister . It also brings to light the ancient wisdom in the ill effects of consanguine marriages
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