Guru (transl. Teacher) is a 2007 Indian Hindi-language drama film directed by Mani Ratnam. Produced by Madras Talkies, the film stars Abhishek Bachchan, Aishwarya Rai Bachchan, Mithun Chakraborty, R. Madhavan, and Vidya Balan. The score and soundtrack for the film were composed by A. R. Rahman. The film was rumored to be a biopic of the industrial tycoon Dhirubhai Ambani, but Ratnam refuted the claims, clarifying it was a work of fiction.