O. P. Ralhan (21 August 1928 – 20 April 1999) was a Bollywood producer, director, writer, actor who made several hit movies in 1960s, 1970s and 1980s.

[1] Om Prakash (O. P.) Ralhan was born on 21 August 1928 in Sialkot, British India, current Pakistan, into a prosperous Hindu Arora family.

Ralhan managed to get distributors to finance his first film: Gehra Daag (1963), with Rajendra Kumar and Mala Sinha in lead roles.

Phool aur Phattar, directed by Ralhan himself, with a cast including Meena Kumari, Shashikala and Dharmendra, which went on to make him into a super star.

However, he is best remembered as the Director (and also its producer) for film: Talash (1969) (Lead actors: Rajendra Kumar and Sharmila Tagore).

Paapi was a multi starrer with an ensemble cast of Sunil Dutt, Sanjiv Kumar, Zeenat Aman, Reena Roy, Prem Chopra, Danny Denzongpa.