Sanjay Chauhan is a screenplay and dialogue writer, born in 1962 in Bhopal, Madhya Pradesh. He belongs to a service class family with her father working in railways and mother as a teacher. He started off as a journalist in Delhi. He started writing for the Sony crime series, Bhanwar. Sanjay has done some remarkable work in dialogue and screenplay writing.

Some of his highly acclaimed works include Hazaaron Khwaishe Aisi, Dhoop, Siskiyan, Maine Gandhi Ko Nahi Maara, Saaheb Biwi aur Gangster, etc. All of these above-listed films are critically and commercially successful.

He has won a Filmfare for the Best Story in I Am Kalaam. His best-known work that is critically appreciated is Paan Singh Tomar where he associated with Tigmanshu Dhulia.