Sri Periyavaccan Pillai was born in the sarvajith year (1167), in the month of avani in Krishnashtami Rohini. He was born to Yamunacharya and Nacciyaramman, in the town of Sanganalloor near Thiruvelliyankudi (in Tanjore district). He was born as the amsam of Lord Krishna and was named as Sreekrishnar. He was the right hand of Sri Nampillai (like Lakshmana was to Rama), and wrote several vyAkhyAnams based on Sri Nampillai's upanyAsams.He is the person who wrote vyakhyanams for all the nAlAyira divyaprabhandam.