Mazloom

Mazloom is a 1986 Bollywood film directed by C.P. Dixit, starring Suresh Oberoi, Anita Raj and Mandakini in lead roles.

After some day, Purnima gets married to Vijay Suresh Oberoi, but ironically the same child ends up in their care, and they name him Rajan Arjun.Years later, Purnima gives birth to another child, named Aman. The two boys grow up, and siblings rivalry prevails to such an extent that they eventually fall in love with the same woman, Meena. Things become increasingly complicated so much so that a member of their family ends up being killed, and another arrested. ........

Source: Wikipedia