Listen to O Maa Ganga online. O Maa Ganga is a Bengali language song and is sung by Santosh Mukherjee and Sombhu Mukherjee. O Maa Ganga, from the album Aay Ma Sadhan Samarey, was released in the year 1981. The duration of the song is 3:46. Download Bengali songs online from JioSaavn.