As per the CrPC (Criminal Procedure court) incidents are divided into two categories that is cognizable and non cognizable. For cognizable case police can register an FIR (First Information Report) and investigated further. This is govern by under section 154 CrPC.
Also incase of non cognizable incidences/offences police registers the information but advices the complainant to approach court/ other legal mechanism for remedy. FIR of cognizable offences is governed under section 154 CrPC whereas non cognizable reports are governed under section 155 of the CrPC. Procdure and important aspects of the First Information Report (FIR) of cognizable offences are mentioned below:
Steps : Filing FIR