Interests: Bollywood refers to the Hindi-language film industry based in Mumbai (formerly known as Bombay), Maharashtra, India. The term is often used to refer to the whole of Indian cinema; however, it is only a part of the larger Indian film industry, which includes other production centers producing films in multiple languages. Bollywood films are known for their song-and-dance numbers and often incorporate a mix of Indian and Western music. Many Bollywood songs are released in the MP3 format, which is a digital audio format that compresses audio files to a smaller size while maintaining a good sound quality.