Listen to Naan Oru Gnani online. Naan Oru Gnani is a Tamil language song and is sung by S.P. Balasubrahmanyam and Shankar-Ganesh. Naan Oru Gnani, from the album Viswanathan Velai Venum, was released in the year 1985. The duration of the song is 5:02. Download Tamil songs online from JioSaavn.