Kammo (Nargis) lives a wealthy lifestyle with her widowed multi-millionaire dad, Girhdari Lal (Gope). He would like her to marry someone who is not after their wealth. To his dismay, she chooses to marry a pilot named Sumankumar (Pran), who is known for womanizing and greed. When he disapproves, she runs away from home. The news of her running is announced on radio and newspaper offering a reward of ₹1.25 lakhs for her safe return. On the run, she decides to go by bus to meet Suman. A free-lance reporter Sagar (Raj Kapoor) in search of a story is also going to Bangalore to get advance from his editor. An auto owner cum driver Bhagwan sees the news of reward and goes with his wife to find Kammo. The first encounter of Kammo and Sagar in the bus starts with a tiff. After night's journey full of tiffs the bus stops for passengers to eat snacks. Kammo wanders off and Sagar sees the news of her running and thinks that it will be good story. She misses the bus and Sagar also let it go for his scoop. They catch the next bus, in the bus a poet (Johnny Walker) bores her by reciting his poems at that point Sagar comes to her rescue claiming to be her husband. Midway through the journey the bus breaks down and they take a room in Banwari's (David) inn where only married couples are allowed. They share room and make a partition of bed sheet. The comic situation brings them closer. Kammo spends all the money to buy toiletries, etc. They start walking the next 7 km to Bangalore. Kammo falls in love with the simple life of villages. They spent night in the open where Bhagwan spots them. In the confusion of the melee they escape with auto and take a room in Madarilal's (Mukri) inn with promise to clear rent on check out. The adventure of journey and facing situations together bonds them and they fall in love with each other. Deciding to marry Kammo, Sagar goes to Bangalore to get advance from his editor, leaving a note, while Kammo is still sleeping. The editor gives him cheque which takes time to cash. Meanwhile in the morning the Madarilal's wife humiliates Kammo and throws her out as she does not have money to pay. Kammo thinks that Sagar has abandoned her for story. She phones her father from a house and asks him to come and take her home. Coming back Sagar sees her motorcade going. He thinks she has left her. Both feel let down and dejected. He buys the auto from Bhagwan from advance money.

Kammo has come of age and misses Sagar. Seeing her sad Girdhari Lal fixes her marriage with Suman. The news of marriage is flashed in papers. On the day of marriage a press conference is held to click the picture of bride and for QA. At the end of the conference when all are gone Sagar demands money, assuming he wants reward money the father gives him cheque of ₹1.25 lakhs. Sagar tears off the cheque and submits a bill for 15 rupees 12 annas for the expenses incurred during their journey. Misunderstanding over she again runs away with Sagar on the same auto but this time with the consent of her father to live happily ever after.