Listen to Un Azhagukku (Original Motion Picture Soundtrack) online. Un Azhagukku (Original Motion Picture Soundtrack) is a Tamil language song and is sung by Shankar Mahadevan and Sujatha Mohan. Un Azhagukku (Original Motion Picture Soundtrack), from the album Aalavandhan (Original Motion Picture Soundtrack), was released in the year 2001. The duration of the song is 6:46. Download Tamil songs online from JioSaavn.