IPC 121 → BNS 147: Waging War

Quick Summary: IPC 121 vs BNS 147

The Bharatiya Nyaya Sanhita (BNS) 2023, in force since 1 July 2024, has replaced the colonial-era Indian Penal Code (IPC) 1860. IPC 121 (Waging War) sits among the IPC's offences against the State and the armed forces — the group the Bharatiya Nyaya Sanhita redrew more heavily than almost any other. Renumbered as BNS 147, the conduct is recast around the sovereignty, unity and integrity of India, with the colonial sedition offence replaced by a distinct provision targeting acts that endanger the nation, so waging war must now be read through the new framework rather than the repealed IPC 121.

What did IPC 121 cover?

IPC 121 dealt with waging war — waging, or attempting to wage war, or abetting waging of war, against the government of india. Until 30 June 2024, every FIR and criminal trial for this offence was registered and prosecuted under this provision of the Indian Penal Code 1860.

BNS 147: What changed in the new law?

No major change. From 1 July 2024, new complaints relating to waging war are filed under BNS Section 147, while cases registered earlier continue under the old IPC provision as per the saving clause of the BNS.

Punishment under BNS 147

Same - Death or Life Imprisonment

Practical implications for advocates, police & citizens

• Advocates: Charges for waging war in this group are grave, typically non-bailable Sessions matters — confirm the required prior sanction and frame them under BNS 147 rather than the repealed IPC 121.
• Police officers: Route a waging war investigation through the prescribed sanctioning authority and cite BNS 147 in the FIR; procedure follows the BNSS.
• Law students & citizens: Because waging war in this group carries severe punishment, never rely on the old IPC 121 number when checking your position under the new law.