Listen to Unnai Sandhithaen online. Unnai Sandhithaen is a Tamil language song and is sung by Harish Raghavendra, Harini and Dhina. Unnai Sandhithaen, from the album Nee Naan Nila, was released in the year 2007. The duration of the song is 3:50. Download Tamil songs online from JioSaavn.