Listen to Unnai Santhithen online. Unnai Santhithen is a Tamil language song and is sung by K.J. Yesudas and Vani Jayaram. Unnai Santhithen, from the album Naangal Puthiyavargal, was released in the year 1989. The duration of the song is 5:06. Download Tamil songs online from JioSaavn.