Listen to Harivarasanam - Unni Krishnan online. Harivarasanam - Unni Krishnan is a Tamil language song and is sung by Unni Krishnan. Harivarasanam - Unni Krishnan, from the album Pallikattu Sabarimalai - A Complete Collection, was released in the year 2016. The duration of the song is 3:51. Download Tamil songs online from JioSaavn.