Listen to Vaanukku Thanthai online. Vaanukku Thanthai is a Tamil language song and is sung by S.P. Balasubrahmanyam and L.R. Eswari. Vaanukku Thanthai, from the album Aadupuli Aattam, was released in the year 1977. The duration of the song is 4:22. Download Tamil songs online from JioSaavn.