Listen to Unnam Marannu online. Unnam Marannu is a Malayalam language song and is sung by Bichu Thirumala, S. Balakrishnan and M.G. Sreekumar. Unnam Marannu, from the album In Harihar Nagar, was released in the year 2019. The duration of the song is 4:27. Download Malayalam songs online from JioSaavn.