Listen to Unnaiyum Marappathundo online. Unnaiyum Marappathundo is a Tamil language song and is sung by T. M. Sounderarajan. Unnaiyum Marappathundo, from the album Pokkisham - Lord Murugan - Vol 2, was released in the year 2002. The duration of the song is 4:57. Download Tamil songs online from JioSaavn.