Listen to Unnai Naan Sernthiruka online. Unnai Naan Sernthiruka is a Tamil language song and is sung by Ilaiyaraaja, K. S. Chithra and S.P.B.. Unnai Naan Sernthiruka, from the album Chinna Ramasamy Periya Ramasamy, was released in the year 1998. The duration of the song is 5:44. Download Tamil songs online from JioSaavn.