Listen to Kab Tak Rahenge Qaid Hum online. Kab Tak Rahenge Qaid Hum is a Hindi language song and is sung by Mumtaz Shanti and H.K. Mastana. Kab Tak Rahenge Qaid Hum, from the album Badalti Duniya, was released in the year 1943. The duration of the song is 2:50. Download Hindi songs online from JioSaavn.