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