Listen to Unnai Naan Santhithen online. Unnai Naan Santhithen is a Tamil language song and is sung by P. Susheela and Viswanathan-Ramamoorthy. Unnai Naan Santhithen, from the album Aayiratthil Oruvan, was released in the year 1965. The duration of the song is 3:23. Download Tamil songs online from JioSaavn.