Prem Nagar or Premnagar (City of Love) is a 1974 Hindi drama film, produced by D. Ramanaidu, directed by K.S. Prakash Rao, and starring Rajesh Khanna, Hema Malini, Aruna Irani, Ashok Kumar, Kamini Kaushal, Prem Chopra, Asrani and Jagdeep. Actor David was in negative role in the film plotting how to fool the prince Karan by robbing off his wealth and transfer to his brother. The music is by Sachin Dev Burman. Box Office India declared the film a Super hit.
The producer D. Ramanaidu made the same film in three languages. The Tamil remake was Vasantha Maligai released in 1972 and in Telugu (the original) was made as Prem Nagar released in 1971. In Tamil the pair was played by Sivaji Ganesan and Vanisri and in Telugu Akkineni Nageswara Rao and Vanisree as well. It ran for nearly 750 days in the theatres. Though the movie is remake of original Telugu version, some few scenes which were not in Telugu but in Tamil version was remade in Hindi also.
The Hindu newspaper in its review of the film in 2015 quoted "Khanna is a perfect choice for the role, the drunkard scion of a royal family, blessed with a heart of gold.Technically the film scores highly on all spheres.Editing by K.A. Marthand and J. Narasimha Rao is slick and keeps the story moving at a steady pace, with no room for slackness."The Hansindia site noted that Khanna had never shied away from portraying roles that were slightly off the regular path and ‘Prem Nagar’ featured him as a decadent prince, Karan, who happily idles away his life as playboy. During the premier of the film, after watching the film Raj Kapoor kissed Khanna’s hands and complimented him for the way he used them like swords in the climax. ‘Prem Nagar’ was considered special by Khanna himself, as it featured his favourite song, “Yeh laal rang” sung by his ‘voice’ Kishore Kumar.