O.P. Dutta (1922 – 9 February 2012) an Indian filmmaker and writer, was born in Gujranwala, British India to a Punjabi Brahmin family. He began his career in 1948. He directed nine films until 1959, after which he got into writing dialogues, scripts and stories for films. He wrote most of the films for his director son, J.P. Dutta, notably Border and LOC Kargil. In 2001, he won the International Indian Film Academy Award and the Filmfare Award for the film Refugee. In 2006, he won a Lifetime Achievement Award from Filmfare. Dutta died from pneumonia in Mumbai on 9 February 2012. He was 90.
O.P also made a film in Karachi after post independence in the early 1950s called Anokhi, and further helped build a studio in that city. Wrote for films not in the list are Mastana ( *mehmood Vinod Khanna ) Jeet (* Randhir Kapoor Babita ) additional dialogue for CHIRAG (* Sunil Dutt, Asha Parekh) and DO Raaste (* Rajesh Khanna, MUMTAZ) he did not figure in the credits due to differences with RajKhosla who insisted on him sharing credits with another writer