Shambhu (Om Prakash) is a village Chowkidar (night watchmen), who is helpful to poors oppressed by Lala Dinanath (Jeevan). He has a sister, who is missing for about a year. One night during the patrol, he finds his sister coming from the house of village chief Thakur Ranvir Singh. It turns out that his sister had a love afair with Thakur and went into hiding once she got pregnant and now the Thakur is not accepting the girl child. Sambhu's sister hand him the baby and commit suicide by jumping into a nearby river. Shambhu first takes the baby girl to Thakur who again rejects the baby and die accidentally in an attempt to shoot at Shambhu. Shambhu raises the girl child on his own. Meanwhile Lala Dinanath has a son, whom he sent to city for higher education and become a doctor. Expecting that his doctor son will help him in earning more money by exploiting the poor villagers. Thakur also has a son, whom he also sent to city for better education. After few years Dinanath's son Shyam (Sanjeev Kumar), now a doctor, returns to village and is appalled by the condition of village and find out his father to be the main reason. He decides to stay in village and nurse them to wipe his father's sin. Dr. Shyam's kindness toward the village people earns his respect and praise all around, but makes his father angry as he is not earning any money. He subsequently forms a romantic relationship with Shambhu's grown up niece Radha (Yogeeta Bali).
Thakur's son Gopal (Vinod Khanna) becomes a playboy and return home to occupy his father's 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 Gopal's goon had kidnapped Radha. So now vindicated Shyam goes to save Radha and just reach in time. A fight starts between Gopal and Shyam. Gopal's paternal aunt comes and stops the fight. She tells everyone that Radha is actually Gopal's 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.
- Genre: Thriller
- Runtime: 135 Minutes
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.