IPC 99 → BNS 37: Limits of Private Defense

Quick Summary: IPC 99 vs BNS 37

The Bharatiya Nyaya Sanhita (BNS) 2023, which came into force on 1 July 2024, has replaced the colonial-era Indian Penal Code (IPC) 1860. Under the new criminal law framework, IPC Section 99 (Limits of Private Defense) is now mapped to BNS Section 37.

What did IPC 99 cover?

IPC 99 dealt with limits of private defense — acts against which there is no right of private defense. Until 30 June 2024, every FIR and criminal trial relating to this offence in India was registered and prosecuted under this provision of the Indian Penal Code 1860.

BNS 37: What changed in the new law?

Crucial section defining limits. From 1 July 2024, all new criminal complaints relating to limits of private defense are filed under BNS Section 37. Cases registered before 1 July 2024 will, however, continue to be tried under the old IPC provisions as per the saving clause of the BNS.

Punishment under BNS 37

N/A - General Exception

Practical implications for advocates, police & citizens

• Advocates: While drafting bail applications, vakalatnamas and written statements for offences registered after 1 July 2024, cite BNS 37 instead of IPC 99.
• Police officers: Use BNS 37 as the substantive offence in new FIRs; procedure is governed by the Bharatiya Nagarik Suraksha Sanhita (BNSS).
• Law students & citizens: For competitive exams, judicial services and general awareness, remember the IPC 99 ↔ BNS 37 mapping.