Listen to Bnakkum Unakkumthaan online. Bnakkum Unakkumthaan is a Tamil language song and is sung by T. M. Sounderrajan and P. Susheela. Bnakkum Unakkumthaan, from the album Muharasi, was released in the year 1966. The duration of the song is 3:34. Download Tamil songs online from JioSaavn.