Nool Veli is a 1979 Indian Tamil-language drama film directed by K. Balachander and starring Sarath Babu, Sujatha, and Saritha in prominent roles. The film was made simultaneously in Telugu as Guppedu Manasu and is a remake of the 1977 Malayalam film Aa Nimisham.
The movie follows the story of two families who become good neighbours. Buchi Babu, an architect, his wife Vidya, a writer, and their young daughter move in next door to Srimati, an out-of-work actress living with her teenage daughter Baby. The two families have fun together playing games and going to the beach.
Kamal Haasan makes a guest appearance in both the Tamil and Telugu versions of the film. Nool Veli was released on 7 September 1979, while Guppedu Manasu was released on 2 November 1979.