Listen to Nila Onnu online. Nila Onnu is a Tamil language song and is sung by Harini, Karthik, Jiiva, Rekha, Harish Raghavendra, Grace Karunas, Sabesh, Tippu and Jayalakshmi. Nila Onnu, from the album Kadhalanathey, was released in the year 2005. The duration of the song is 4:55. Download Tamil songs online from JioSaavn.