Listen to Pattathaan Gnanam online. Pattathaan Gnanam is a Tamil language song and is sung by Malaysia Vasudevan and Shankar-Ganesh. Pattathaan Gnanam, from the album Ulagam Piranthathu Enakkaga, was released in the year 1984. The duration of the song is 5:17. Download Tamil songs online from JioSaavn.