Listen to Gyan Ganga online. Gyan Ganga is a Gujarati language song and is sung by Sarita Joshi and Gangadhar Rajpurohit. Gyan Ganga, from the album Gyan Ganga - Dhun Mantra, was released in the year 2012. The duration of the song is 30:45. Download Gujarati songs online from JioSaavn.