Listen to Than Vaanathai online. Than Vaanathai is a Tamil language song and is sung by S. Janaki, S. P. Balasubrahmanyam, and L. R. Eswari. Than Vaanathai, from the album Amarakaviyam, was released in the year 1979. The duration of the song is 5:08. Download Tamil songs online from JioSaavn.