Sollathaan Ninaikkiren(1973)

Original title: சொல்லத்தான் நினைக்கிறேன்

Kamala, Manjula and Pushpa are sisters, each attracted to Raghavan, their tenant. Raghavan falls in love with Pushpa. However, things take a turn for the worse, when Pushpa sacrifices herself to the whims of Kamal, a playboy, to save her friend Sudha from his exploits.