Listen to Kaatru Vaanam online. Kaatru Vaanam is a Tamil language song and is sung by Ilaiyaraaja and S.P. Balasubrahmanyam. Kaatru Vaanam, from the album Rama Rajyam, was released in the year 2012. The duration of the song is 4:34. Download Tamil songs online from JioSaavn.