Bollywood family drama flick, Duniya, directed by T. Prakash Rao was released on December 28, 1968. The movie starred Dev Anand and Vyjayanthimala in lead roles while Balraj Sahni, Madan Puri, Nana Palsiker, Achala Sachdev, Lalita Pawar, Prem Chopra, Johnny Walker, D. K. Sapru, Sachin, Sulochana Latkar and Brahm Bhardwaj also played significant characters in the film. The hit melodious music of the movie was directed by the hit veteran music director duo Shankar Jaikishan in lead roles while Kishore Kumar, Mohammed Rafi, Mukesh, Asha Bhonsle, Sharddha Sinha etc.

Gopal and Mala are brother and sister. Their best friend is Amarnath. They are living in a small village. Mala is handed over by her mother to her cousin named Shobha ( Achala Sachdev ) as she is not capable of giving Mala a good life. Mala’s brother Gopal also escape from the house when he reveals that Mala is in Bombay now. Years later, Gopal, Mala and Amarnath are now grown up persons. Mala ( Vyjayanthimala ) is living a wealthy lifestyle alongwith her uncle named Ramnath Sharma ( Balraj Sahni ), who is a public prosecutor by profession.

Amarnath ( Dev Anand ) is now an advocate by profession. Amarnath meets with mala and falls in love with her. But both of them are still unknown to they both are childhood friends. Gopal ( Suresh ) is now a thief. Gopal is arrested by police and his case comes to Amarnath. Amar decides to defend him. He get shocked when he reveals that Gopal is charged of murdering a guy named Mohanchand ( Prem Chopra ). Police have strong evidence against Gopal but Amar wants to prove him innocent at any cost in the court.

The songs of the movie are:

1. Yeh dharti hindustan ki
2. Tu hi meri
3. Falsafa pyar ka
4. Duniya isi ka naam
5. Jawaan tum ho