If the police need permission from a magistrate to act on a non-cognizable offense, what’s the quickest and most efficient way to file an NC and get it processed?

For a non-cognizable offense, the quickest and most efficient way to file an NC is to submit a written complaint to the police station where the offense occurred. The police will then investigate the matter and, if they believe sufficient evidence exists, apply to a magistrate for permission to proceed with an arrest or further action.