Sabse Bada Rupaiya, Padosan, Do Phool: Mehmood was one of eight children born to actor and dancer Mumtaz Ali in Bombay. Mehmood had an elder sister and the remaining six siblings were younger to him. Mehmood started acting as a reluctant child actor in Bombay Talkies films like Kismet. Some of his early jobs before he started acting were driving, doing odd jobs, selling poultry. He worked as director P L Santoshi\'s driver (Later Santoshi\'s son Rajkumar Santoshi cast Mehmood in his venture Andaz Apna Apna). He was hired to teach table tennis to Meena Kumari in those days. He later married her sister Madhu. It was after marriage and becoming a father that he decided to act to earn a better living. He got a small break as a murder victim in C.I.D. He started off by doing small unnoticed roles in films like Do Bigha Zameen and Pyaasa. He later went on to act in lead roles but he was appreciated for his comedy.
He died in his sleep on July 23, 2004 in Pennsylvania, U.S. where he ha