For the sister's sake) is a 1971 Indian Tamil-language film directed by D. Yoganand.

The film stars Sivaji Ganesan, Vennira Aadai Nirmala, and Lakshmi.

[1][2] Ramu and his sister Radha lead a normal life until Ramu's boss, Moorthy, falls in love with Radha.

However, in a shocking turn of events, Radha goes missing and Moorthy is murdered.

[3][4] The song "Angamuthu" belongs to baila, a Sri Lankan music genre.