Mumtaz was born on July 31, 1947 to Abdul Sameed Askari and Sardar Begum Habib Agha aka Naaz, both of Iranian origin but settled in Bombay, India. Mumtaz first appeared in as child artist in Sanskar (1952),Yasmin (1955),Lajwanti (1958),Sone Ki Chidiya (1958),Stree(1961).Her mother, Naaz, was also an actress in films.