Badi Bahen aka President is a 1937 Hindi social romantic drama film (the Bengali version was called Didi and starred several different actors). The story according to the credit roll of the film is "A tale of love and greater love" developed on an idea by M. M. Begg. It was a love triangle with a social content that highlighted the conditions of the mill workers. It was also the first film to show a liberated educated woman managing her own factory