Orphaned Raju, in the company of four elephants, has to perform with them at street corners, in order to keep alive. The back-story is that as an orphan, they have saved his life from a leopard. In time, he makes it big, and starts Pyar Ki Duniya (The World Of Love), a zoo in which various wild animals reside along with his elephants, among whom Ramu is closest to him. Slowly he amasses a fortune, and is able to build his own private zoo, housing tigers, lions, bears, and of course the four elephants. He treats all the animals as his friends. He meets with Tanu, and both fall in love. Tanu's dad, Ratanlal, is opposed to this alliance, but subsequently relents, and permits the young couple to get married.He falls in love with Tanu (Tanuja), but her rich dad (Madan Puri) agrees to their marriage only after some persuasion. However trouble looms soon after as Tanu feels neglected. Things worsen when their child is born, and Tanu, fearing physical harm to her child from the elephants, tells Raju to choose between the elephants and his family. Tanu is unhappy with the amount of time Raju spends with his animal friends, and this causes some bitterness between them. Things do not improve when a child is born, as Tanu fears that one day the child will be harmed by one of the animals, and hence Raju is told to make a choice between his animal friends or his wife and son.When Raju chooses his lifelong friends over wife and son, Ramu decides to bring the estranged couple together, but thanks to the villainous Sarwan Kumar (K.N.Singh), he has to sacrifice his life.