C.I.D Moosa is a 2003 Indian Malayalam-language action comedy thriller film directed by Johny Antony, written by Udaykrishna–Sibi K. Thomas duo, and co-produced by Dileep. It stars Dileep in the title role of a private detective, and also features Bhavana, Ashish Vidyarthi, Murali, Harisree Ashokan, Cochin Haneefa, Jagathy Sreekumar, Captain Raju, Oduvil Unnikrishnan and Salim Kumar. In the film, C.I.D Moosa, a private detective, faces many challenges while solving various cases. His only rival is his own brother-in-law, Peethambaran, who is a police officer.

Gopalakrishnan Padmanabhan, better known by his stage name Dileep, is an Indian actor, producer, and businessman who predominantly works in the Malayalam film industry. He has acted in more than 150 films and has won several awards, including four Kerala State Film Awards and one Filmfare Awards South.