Listen to Unnai Azhaththathu online. Unnai Azhaththathu is a Tamil language song and is sung by S. Janaki, S.P. Balasubrahmanyam and Sankar-Ganesh. Unnai Azhaththathu, from the album Thaai Veedu, was released in the year 1983. The duration of the song is 5:29. Download Tamil songs online from JioSaavn.