Listen to Gaan Amar Onno Daata online. Gaan Amar Onno Daata is a Bengali language song and is sung by Manju Karmakar. Gaan Amar Onno Daata, from the album Gaan Amar Onno Daata, was released in the year 2016. The duration of the song is 8:13. Download Bengali songs online from JioSaavn.