Listen to Oru Raaga online. Oru Raaga is a Tamil language song and is sung by Vaali, Ilaiyaraaja, S. P. Balasubrahmanyam and S. Janaki. Oru Raaga, from the album Innisai Mazhai, was released in the year 1992. The duration of the song is 5:47. Download Tamil songs online from JioSaavn.