Cognizable Offence and Non-cognizable Offence :

“Cognizable offence” means an offence for which, and “cognizable case” means a case in which, a police officer may, in accordance with the First Schedule or under any other law for the time being in force, arrest without warrant.

“Non-cognizable offence” means an offence for which, and “non-cognizable” case means a case in which, a police officer has no authority to arrest without warrant. Thus, a non-cognizable offence needs special authority to arrest by the police officer. [Section 2(c) and 2(l)]

In order to be a cognizable case under Section 2(c) of the Code, it would be enough if one or more (not ordinarily all) of the offences are cognizable.

(Note: It may be observed from the First Schedule that non-cognizable offences are usually bailable while cognizable offences are generally non-bailable).