Correct Option: 3 - Both of them

• The Chief Judicial Magistrate (CJM) is competent to take cognizance of any offence committed anywhere in his district. This means that the CJM has the authority to handle cases from the entire district, not limited to specific areas.
• Additionally, the CJM can also take cognizance of offences committed within the limits of the area assigned to a subordinate Judicial Magistrate. This ensures that the CJM can intervene in cases where a subordinate magistrate is involved and can assume control when necessary.