Chowkidar

Chowkidar is a 1974 Bollywood drama film directed by Shyam Ralham. The film stars Sanjeev Kumar, Vinod Khanna and Yogeeta Bali in lead roles and Om Prakash in supporting role.

Thakurs son Gopal Vinod Khanna becomes a playboy and return home to occupy his fathers position, with his friend Vilaitiram Ram Mohan. Vilaitiram is looking for an opportunity to blackmail Gopal with the help of dancer Bela Jayshree T.. When Gopal try to make advances toward Radha when he sees her for first time, but she resist and ends of injuring Gopal. With the help of Vilaitiram, Gopal sends his goons to kill Radha, but Dr. Shyam saves her. Realising that he can never lay hands on Radha as long as Shyam is present, Gopal calls Bela to village. Bela trap Shyam in a small home and accuse in front of village of raping her. Heartbroken Radha and Shambu decides to leave the village. As the job is done by Bela, she is no longer required and Vilaitiram tries to kill her. Again Gopal comes and saves her. Now realising her mistake, she confess everything to Shyam. Meanwhile Gopals goon had kidnapped Radha. So now vindicated Shyam goes to save Radha and just reach in time. A fight starts between Gopal and Shyam. Gopals paternal aunt comes and stops the fight. She tells everyone that Radha is actually Gopals sister. A secret she and Shambhu has been hiding since long, but now is necessary to tell everyone. Deeply ashamed Gopal decides to self immolate and burn the house. But Radha and others forgives him and stop from killing himself. The story ends in peace with Gopal accepting Radha as his sister.

Source: Wikipedia