Punnagai Mannan is a 1986 Indian Tamil-language musical romantic drama film directed and written by K. Balachander.
The film stars Kamal Haasan and Revathi in the lead roles, with Srividya, Rekha, Delhi Ganesh, Sudarshan and Sundar Krishna Urs in supporting roles.
The plot revolves around Sethu (Kamal Haasan), a dance instructor, and his student Ranjani (Revathi). Their relationship blossoms amidst significant opposition from Ranjani's parents, who disapprove of Sethu due to his background as the son of a drunkard cook. The story also incorporates elements related to a failed suicide attempt involving love and loss.
Released on Diwali day in 1986, Punnagai Mannan became a significant success, running for over 25 weeks in theatres.