Nama Sankeertanam exponent Angarai A.V.K.Rajasimhan (Angarai) Bhagavatar hails from a music family  and had his initial training in Carnatic music from .V.Subrahmanyam. Later, he came under the guidance of Gopalakrishna Bhagavathar of Pudukottai for Sampradaya Bhajan.  Rajasimhan is well versed in performing and leading Namasankeerthanam which includes Sampradaya Bhajans, Abhanga bhajan, Divyanama sankeerthanam, Dolothsavam Unchavruthi, Radha kalyanam, Sita kalyanam, Padmavati kalyanam, Meenakshi kalyanam, Hariharaputhra kalyanam, Vasantha kelikai and Pavalimpu.
He was conferred the title Sankirtana Choodamani by Sri Krishna Gana Sabha, Chennai during its 12th  Nama Sankeerthanam Vizha.