Vardhanti(Birth day) of Sri Rayaru is observed on the seventh day during the Shukla Paksha of Phalguna Masa
Our beloved Raayaru was born in Manmatha Naama Samvatsara, Phalguna masa, sukla paksha Sapthami (Thursday, Mrigashira Nakshathra) in the year 1595 at Bhuvanagiri near Chidambaram in Tamilnadu.
Venkatanatha (poorvaashrama name of Sri Raghavendra Swamy) was born to Thimmana Bhatta and Gopikaamba in Gouthama Gothra

Bhuvanagiri today is a small panchayat town in Cuddalore district. The RagavendraSwamyTemple is located at 4th Patti street and it is ten minutes walk from the Bhuvanagiri busstand.
Check the following link to learn more slokas and Dasara padagalu on Rayaru: Raghavendra Theertharu
Check more details on Bhuvanagiri – Birth place of Rayaru