Nadan is a 1951 Indian romantic-comedy film directed by Hira Singh and starring Dev Anand, Madhubala. It is based on the 1934 American film It Happened One Night. The film received mixed reviews from critics, but was popular with audience.
The music was composed by C. Ramchandra.
The film was the sixteenth highest-grossing Hindi film of the year.
On 30 November, Meena Sastri of the journal Thought wrote that the poorly-made film was saved by Madhubala's work: "The incidents connecting the insipid plot are incredibly weak. [...] The main redeeming feature is the heroine's [Madhubala's] appealing beauty and considerable acting talent. This combination helps to carry her through a feeble role." In contrast, Baburao Patel observed that the actress looks ill and her beauty is "destroyed" by pimples. He, however, liked the film.