Plot

Professor Brijmohan Agnihotri hates women, love and institution of marriage. He advises his pupil Rajesh to not fall in love or get married. Rajesh blindly follows professor until one fine day he confronts Poonam. Poonam's guardian happens to be Professor Agnihotri's teacher. He asks professor to take care of Poonam before he leaves for pilgrimages. Poonam stays with professor and calls him uncle but professor now wants to marry her. Professor and Rajesh are now at loggerhead. Finally, professor realizes his mistake and agrees for Rajesh and Poonam's marriage.—Vinod Arya

Professor Brij Mohan Agnihotri is a confirmed bachelor. Period. No amount of pleading or even begging him to get married, has had no effect on him whatsoever. His reputation gets around, and he gets a young man named Rajesh, to wishes make him his mentor, to which Brij agrees. On a visit to his friend out of town, Brij meets with his beautiful daughter, Punam, and falls head over heels in love with her. Throwing all caution to the winds, he changes his appearance, and attempts to woe Punam, only to find that Punam is attracted to his student, Rajesh. Now the professor has to decide whether to get rid of his pupil altogether, or to reverse their roles and make him his mentor.—rAjOo (gunwanti@hotmail.com)

Professor Brij Mohan Agnihotri (I. S. Johar) is a confirmed bachelor, and he firmly refuses to get married. He has a student named Ramesh (Joy Mukherjee), who considers him his mentor. Ramesh also vows never to marry when Brij shows him the ills of a married life. Ramesh's dad (Nazir Hussain) thinks he is a vagabond and mom (Achala Sachdev) tries to defend him. House servant is Narayan (Asit Sen) who tries to save Ramesh from his dad. Dad forces Ramesh to accompany him for a tour of his forest property, where Ramesh meets a tribal girl Poonam (Saira Banu) and her educated dad Kedarnath Badri Narayan (A. K. Hangal). They live in a tree house in the middle of the forest and love nature.

Ramesh comes back and tells Brij that he is in love. Meanwhile Brij meets his own guru Kedarnath, who has come to the city. Kedarnath tells Brij that Poonam is an orphan and he wants Brij to become her guardian, so that Kedar can go for his retirement immediately in the hills. Brij meets Poonams and instantly falls in love with her. He asks her to call him Birju, but she calls him Chachaji (Uncle).. This annoys Brij !!!

Ramesh finds that Brij is in love and finds the whole idea ridiculous. Brij is convinced that Poonam would love a "mature" guy like him. Brij says "I love you" to Poonam, but she laughs it off thinking that he loves her like a niece. Brij is devastated and goes to Ramesh for help. Throwing all caution to the winds, on Ramesh's advice Brij changes his appearance (clothes, hair color, exercises and becomes youthful), and attempts to conquer Poonam.

Brij takes Poonam shopping, where she gets separated from Brij and runs into Ramesh. Ramesh takes her sightseeing. Shefali (Urvashi Dutta) is Ramesh's friend who is jealous to see him spending time with Poonam. Madan Chicagowala (Madan Puri) is an acquaintance who promises Shefali that he can ensure that Ramesh marries Shefali. Shefali goes with him, but Madan intoxicates her and then films her having sex with him. Meanwhile Poonam returns home and Brij finds that Poonam is the girl that Ramesh is in love with. Brij bans Poonam from meeting Ramesh again, saying that he is not a nice person. But Ramesh meets Poonam and convinces her that he loves her and Ramesh decides to take her home to meet his mom. Ramesh decides to meet Poonam's guardian without knowing that it is Brij. Brij disguises himself, so Ramesh cant recognize him. Brij insults Ramesh and throws him out of his house.

Ramesh returns home only to find that Poonam has hid in his car to come with him. Its late night and Ramesh puts Poonam in the guest room, but she comes over to Ramesh's room and sleeps there, Ramesh outside. The next day, Ramesh's mother finds her in bed and is charmed by her looks. She wakes up and hugs her like her mother. She sings a religious song to charm Ramesh's dad. Shefali meanwhile gets preggers. Madan blackmails her with the film he made of her having sex and asks her to tell Ramesh that the kid belongs to him. Shefali is ashamed of herself, but has no choice. Madan gets Shafali abducted in front of Ramesh, and Ramesh goes to rescue her. When Ramesh saves Shefali, Madan arrives and takes her to a nearby hotel where he mixes their drinks with drugs. They both fall unconscious and wake up naked in a room on a bed. Shefali accuses Ramesh of raping her. Meanwhile Brij admits to Ramesh that he is Poonam's "Chachaji".. Meanwhile Brij feels ashamed since Kedarnath trusted him with guardianship of Poonam. He agrees to get Poonam married to Ramesh.

Meanwhile Shefali tells Ramesh that she is preggers. Ramesh gets her doctors test done, which confirms the pregnancy. she tries to commit suicide, and Ramesh accepts his fault and agrees to marry Shefali. Ramesh communicates his decision to Poonam and Brij, without disclosing his dilemma. Brij is angry with Ramesh for betraying Poonam's trust, but Poonam accepts it as a tryst of fate. Brij understands the entire incident between Shefali and Ramesh. Brij takes Ramesh to the same hotel where Madan played his trick. He tracks the waiter whom Madan bribed. Waiter confirms that he never spiked Shefali's drink, only Ramesh's. Poonam goes to meet Shefali and give her the best of wishes. Thats when Madan calls Shefali and blackmails her for sex. Shefali takes a gun to meet Madan and Poonam goes with her. Madan tries to rape Poonam, and Shefali intervenes and gets shot by Madan in the process. Madan pursues Poonam with an intention to kill her. Ramesh arrives in the nick of time to kill Madan and save Poonam. Brij saves Shefali by taking her to the hospital and later marries her.