The story is centered around the squabbling Sharma family, headed by their eccentric Daduji (Harindranath Chattopadhyay), which has a dubious reputation of the inability to retain a cook for more than a few months due to their ill treatment of their servants. The family's disrepute spreads to such an extent that no person wants to be employed as a cook in their home, named Shanti Niwas (abode of peace).

Then one day a young man named Raghu (Rajesh Khanna) offers to work as a cook, and is hired. Raghu, however, lives up to this challenge and becomes the apple of the eye of every inmate of Shanti Niwas. He even defuses the internal squabbles and re-unites the family. But is Raghu's slate clean, or is there more to his character?

The film starts by the introduction of Shanti Niwas and its residents by Amitabh Bachchan, who is the narrator here. He points out that Shanti Niwas is a pot of ironies: Even though its name means "Home of Peace", there is no peace here. The home, which houses the Sharma family, has members who hate each other for reasons unknown. Even a servant cannot withstand the Sharmas for more than a month.

After every month, the search for a new servant has to start. Then, suddenly a servant named Raghu comes in. Even though nobody remembers asking for some Raghu, they hire him. But Raghu has his own surprises in store for him. Gradually, the whole home comes to know that Raghu is not only an accomplished chef, but also a singer and expert in dancing.

Raghu tells his masters that he worked for reputed veterans of given fields, who taught him something or the other. Gradually, many aces start falling out of his sleeves, causing the Sharmas to develop an attraction to him. Even Daduji, the disgruntled patriarch of the family, develops love for Raghu. The family puts so much trust in Raghu that they even unwittingly show him the box containing the family jewels.

Krishna (Jaya Bhaduri) is the recluse daughter of Daduji's dead son and daughter-in-law. On learning this, Raghu tutors her and brings her talents to the fore. He also helps in clearing up the misunderstandings and calling truces between the family members. Daduji cannot help but think that Raghu is actually a saviour sent by god. Meanwhile, nobody notices that Raghu is suspiciously eyeing the jewel box the whole time.

Meanwhile, Raghu learns that Krishna loves a boy, but the Sharmas are strictly against the union of Krishna with him. The boy also loves Krishna, but is helpless before Krishna's relatives as well. Amongst all the tangle, Raghu suddenly disappears. The Sharmas are also aghast to know that the box is missing as well.

It does not take the Sharmas long to put two and two together. At the same time, Krishna's love interest shows up. The people are already angered at the turn of events and the boys arrival, but they receive a shock when he shows them the jewelry box. He explains that he saw Raghu in a suspicious condition with the box. When he asked Raghu about the box, Raghu tried to run away. He tried to stop Raghu, even beat him up (the boy is a wrestler), but Raghu somehow managed to escape.

Stunned by this unexpected turn of events, the attitude of Sharmas towards the boy changes and they agree to get him married with Krishna out of gratitude. Krishna, however, refuses to buy the story. When the Sharmas start abusing Raghu, Krishna's lover cannot take it anymore and tells them what really happened.

He tells them that he met Raghu at his own wrestling ground. He had a little friendly match with Raghu, where he suffered minor injuries from Raghu. He saw the box and asked Raghu about it. Raghu said that the box was the real reason he came there. Raghu had asked him to take the box to the Sharmas and tell them that Raghu had stolen it so that Krishna's lover can get back his place in the house.

Meanwhile, Krishna sees Raghu outside the house and asks him why did he do all this. Raghu told her that his real name was professor Prabhakar, but he took the fake name of Raghu. He had seen many families like the Sharmas which were on the brink of breaking up and hence decided to use his knowledge to stop this.

Raghu explained to him that if he lies about the box and what happened between him and Raghu, the boy will be able to marry Krishna. Raghu had promised the boy to secrecy, but the latter couldn't stand up the abuse to Raghu. A stunned Sharma family has to accept that Raghu went out of his way to save several homes like Shanti Niwas. Krishna manages to stop Raghu in time from going somewhere else.

Raghu tells her that this is his life's mission and now he has to go. The film ends with a scene of him traveling to a new destination and narration from Amitabh Bachchan that "Raghu is going to a new home. Let's hope it is not yours."

The movie was a hit. It was the 8th highest-grossing film of the year.^[3]

• Rajesh Khanna as Raghu (Bawarchi)
• Jaya Bhaduri as Krishna Sharma
• Usha Kiran as Shobha Sharma (Choti maa)
• Harindranath Chattopadhyay as Shivnath Sharma (Daduji)
• A. K. Hangal as Ramnath Sharma (Munna)
• Durga Khote as Seeta Sharma (Badi maa)
• Asrani as Vishwanath Sharma (Babbu)
• Kali Bannerjee as Kashinath Sharma
• Paintal as Dance Master (Guruji)
• Master Raju as Pintoo Baba
• Seema Kapoor as Dancer #2 (Dance performance night)

• Director - Hrishikesh Mukherjee
• Story - Tapan Sinha
• Screenplay - Hrishikesh Mukherjee
• Dialogue - Gulzar
• Editor - Das Dhaimade
• Producer - Hrishikesh Mukherjee, N. C. Sippy, Romu N. Sippy
• Cinematographer - Jaywant Pathare
• Art Director - Ajit Banerjee
• Animation - S. G. Naiksatam
• Choreographer - Gopi Krishna
• Narrator - Amitabh Bachchan

All lyrics written by Kaifi Azmi; all music composed by Madan Mohan.