Uyirullavarai Usha is a 1983 Indian Tamil-language romantic action film written, directed and scored by T. Rajendar.
The film stars Rajendar, Saritha, Ganga, and Nalini in leading roles, marking the debut for both Rajendar and Nalini in their respective leading roles.
Originally titled Chain Jayapal, the lead role was initially offered to Rajinikanth, who declined, allowing T. Rajendar to make his acting debut as lead actor.
The film was released on 4 March 1983 and was remade in Kannada as Premigala Saval (1984) and in Hindi as Aag Aur Shola (1986), with a dubbed version titled Prema Sagaram in Telugu.
The music for the film was composed by T. Rajendar, who also wrote the lyrics, with some songs later sampled in other versions.