City of Love) is a 1974 Indian Hindi-language romantic drama film, produced by D. Ramanaidu, directed by K. S. Prakash Rao, and starring Rajesh Khanna, Hema Malini, Kamini Kaushal, Prem Chopra, Bindu and Asrani in lead roles, with Ashok Kumar and Aruna Irani in guest appearances.

When Karan rescues former air hostess Lata, who is being molested by her boss, he hires her as his secretary and invites her family to move into one of his cottages.

Released on 24 May 1974, Prem Nagar emerged a blockbuster as well as the fourth highest grossing film of 1974, behind Roti Kapada Aur Makaan, Chor Machaye Shor and Dost.

[8] 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.

The film was considered special by Khanna himself, as it featured his favourite song, “Yeh Lal Rang” sung by Kishore Kumar.