Aag (Hindi: आग; English: Fire) is a 1948 Bollywood film which is produced, directed by and stars Raj Kapoor. The film marked the debut of Raj Kapoor as producer and director and was the first film produced by his R.K. Banner. Nargis, Premnath, Nigar Sultana and Kamini Kaushal also starred in supporting roles. Raj Kapoor's youngest brother Shashi Kapoor appeared as a child artist in this film playing the younger version of his character (Kewal). This was the first film in which Raj Kapoor and Nargis appeared together.