Listen to Unna Naan Thotadhukku online. Unna Naan Thotadhukku is a Tamil language song and is sung by Deva and Krishnaraj. Unna Naan Thotadhukku, from the album Adhikaalai Subhavelai, was released in the year 1989. The duration of the song is 4:37. Download Tamil songs online from JioSaavn.