Listen to Smarasundaranguni online. Smarasundaranguni is a Tamil language song and is sung by Karthik Iyer. Smarasundaranguni, from the album Nalaya Nakshathirangal - Season 2013 - Karthik Iyer, was released in the year 2013. The duration of the song is 3:55. Download Tamil songs online from JioSaavn.