As a screenwriter and dialogue writer, he is best known for Hrishikesh Mukherjee's films Abhimaan, Anupama and Satyakam; and Bimal Roy's Madhumati.

[1] He spent his early years in Lahore, where he received his education in Urdu, as it was common to most Punjabi families, though he never graduated from a college.

By the time of Partition Rajinder Singh Bedi had published numerous more short stories, and had made a name for himself as a prolific writer.

His Urdu novel, Ek Chadar Maili Si, translated into English as I Take This Woman, by Khushwant Singh received the Sahitya Akademi Award in 1965.

[12] In 1954, he joined with Amar Kumar, Balraj Sahni, Geeta Bali and others to create a new company called Cine Cooperative.

He made his directorial debut with Hindi classic Dastak (1970), starring Sanjeev Kumar and Rehana Sultan, with music by Madan Mohan, and in the following decade he directed three more films: Phagun (1973), Nawab Sahib (1978) and Aankhin Dekhi (1978).