Mumtaz was born to Abdul Saleem Askari and Shadi Habib Agha in Mumbai, India, on 31 July 1947. She entered Hindi cinema at age 12. She started as an extra in films in the early 1960s like Boxer, Samson, Tarzan, and King Kong. In the 1960s, she starred in as many as 16 action films with freestyle wrestler Dara Singh and was labelled as a stunt film heroine. Dara Singh-Mumtaz pair had 10 of the 16 films as box office hits.