Nanabhai Bhatt was a well-known Indian film director and producer of Bollywood and Gujarati cinema, known for making over a hundred fantasy and mythological films,including Mr. X (1957), Zimbo Comes to Town (1960), Lal Qila (1960) and the blockbuster Kangan (1959) starring Nirupa Roy and Ashok Kumar. His first film, Muqabala (1942), was the first to feature the double-role or "twins" phenomenon in Indian cinema, wherein lead actress Fearless Nadia alternated between the good sister and the gangster's moll.