Listen to Adhyay 4 - Gyan Yog online. Adhyay 4 - Gyan Yog is a Hindi language song and is sung by Vijay Prakash and Harish Bhimani. Adhyay 4 - Gyan Yog, from the album Geeta Amrut, was released in the year 2004. The duration of the song is 3:45. Download Hindi songs online from JioSaavn.