Listen to Gnanamum Kalviyum online. Gnanamum Kalviyum is a Tamil language song and is sung by K.B. Sundarambal and K. V. Mahadevan. Gnanamum Kalviyum, from the album Thunaivan, was released in the year 1980. The duration of the song is 3:41. Download Tamil songs online from JioSaavn.