Listen to Dost Aur Dushman Par Gyan online. Dost Aur Dushman Par Gyan is a Hindi language song and is sung by Tarun Khanna. Dost Aur Dushman Par Gyan, from the album Chanakya Niti, was released in the year 2021. The duration of the song is 0:57. Download Hindi songs online from JioSaavn.