In 1895 Srila Bhaktivinoda Thakura published in his “Sajjana-tosani” selected verses from “Śrī Prapannāmṛta”, a 12th century book by Sri Ananta Acarya, son of the great Kuresa, famous disciple and chief associate of Srila Ramanujacarya. The book contains valuable information and biographical accounts of the great founders of the Sri-sampradaya – Nathamuni, Yamunacarya and Ramanuja. It is stated in “Prapannāmṛta” in relation to Ramanujacarya’s birth:
caitre meṣe śukla-pakṣe pañcamyāṁ guru-vāsare