Listen to Ragu Kalam Ragu Kalam online. Ragu Kalam Ragu Kalam is a Tamil language song and is sung by L. Krishnan, Priyadarshini and Vidhya Krishna. Ragu Kalam Ragu Kalam, from the album Ragu Dosha Nivarthi, was released in the year 2001. The duration of the song is 4:24. Download Tamil songs online from JioSaavn.