Listen to Raadhe Unakku online. Raadhe Unakku is a Tamil language song and is sung by Papanasam Sivan and M. K. Thiyagaraja Bhagavathar. Raadhe Unakku, from the album Radhe Unakku M K Thyagaraja Hits Vol 2, was released in the year 2003. The duration of the song is 3:30. Download Tamil songs online from JioSaavn.