F.I.R. is a situational comedy serial centered on a Haryanvi female police officer named Chandramukhi Chautala and her three subordinates. The show depicts their lives as they try to solve every case which comes to Imman Chowki, Ravanpur. New cases come to the police station in every episode. An individual or a group come with a complaint or a problem. It may be a case of love, divorce, snoring, or bad cooking. Chandramukhi Chautala and her constables solve the case successfully though the case has nothing to do with their official duties as police officer.