Hindi cinema, popularly known as
Bollywood and formerly as
Bombay cinema, refers to the film industry based in Mumbai, engaged in production of motion pictures in Hindi language. The popular term Bollywood is a portmanteau of "Bombay" and "Hollywood". The industry is a part of the larger Indian cinema, which also includes South Indian cinema and other smaller film industries. The term 'Bollywood', often mistakenly used to refer to Indian cinema as a whole, only refers to Hindi-language films, with Indian cinema being an umbrella term that includes all the film industries in the country, each offering films in diverse languages and styles.