He joined the Annamacharya Project after completing his diploma in Carnatic classical vocal music, in 1978 as a vocal artist. Sri Balakrishna Prasad also received musical training from Dr. Mangalampalli Balamuralikrishna's music, mellifluous voice and unique rendering inspired Sri Balakrishna Prasad to learn classical music. Pasupathi also taught Annamacharya songs as well as classical kritis during two-year scholarship course offered by Tirumala Tirupati Devasthanams. He was closely associated with Nedunuri Krishnamurthy in not only learning music, but also in composing music to Annamacharya Sankeerthanas, publishing books with musical notation and audio CD recordings. Sri Nedunuri Krishnamurthy, who initiated him into the nuances of classical music.
He specialised in Annamacharya compositions under the tutelage of Sangita Kalanidhi, Lt. He is an 'A' grade vocal artist of the All India Radio (AIR).
