Heera has two passions in his life, namely his love for Reema, an air-hostess, and photography. When Reema passes away during an airplane accident, Heera is left with only passion in life - photography. During one of his photographic sessions with Raja Saab, a priceless diamond is stolen by Panna, and is hidden in Heera's car. When Heera comes to know about this theft and that he is in possession of stolen property, he decides to turn Panna in to the police, and that's when he comes to know that Panna is Reema's younger sister.
Vinay finds himself constantly mistaken for a look-alike jewel thief. To clear his name, he joins hands with the police to impersonate the thief and catch the real culprit. When the thief decides to counter by posing as Vinay, their true identities become thoroughly muddled.
Rakesh, a successful architect, falls in love with a girl: Sujata whose father happens to be his own father's business rival. Sujata's father unwittingly assigns Rakesh the contract for building his house. This sets the stage for an entertaining story about the love between two individuals and their efforts to reconcile their families.
About a taxi driver in Mumbai, Mangal, who is called "Hero" by his friends. A driver who drives a cab by day, then drinks at night, listens to his singer girlfriend, Sylive, and then goes into a drunken stupor - and wakes up with a hangover. One day, while assisting another taxi driver, Mangal comes to the assistance of a damsel in distress, who is being molested by two thugs. Mangal gallants rescues her, and attempts to take her to her destination, to no avail, as the person she is looking for has moved. The next day, Mangal and the young woman, Mala, again attempt to seek Ratanlal, a music director, but the entire day is spent in vain. Mala lives in Mangal's tiny apartment and both become attracted to each other. When Mala finds out about Sylvie, she leaves him. He goes in her search, but finds that she has become a famous singer with the help of her music director friend.
Ram Mohan (Dev Anand) an honest lawyer is in love with Janaki (Kalpana Kartik) the beautiful daughter of Din Dayal. Din Dayal accepts the marriage proposal. Kuber Das (K N Singh), a rich businessman has a lustful eye over Janaki. In order to marry Janaki he devises a wicked plan.