Listen to Gnanamum Kalviyum online. Gnanamum Kalviyum is a Tamil language song and is sung by K. V. Mahadevan and K. B. Sundarambal. Gnanamum Kalviyum, from the album K B Sundarambal - All Time Hits, was released in the year 2003. The duration of the song is 3:42. Download Tamil songs online from JioSaavn.