IPC 151 → BNS 189(5): Assembly of 5+

IPC 151 (now BNS 189(5)): Joining or Continuing in an Assembly After a Command to Disperse

IPC Section 151 punished anyone who knowingly joined, or continued in, an assembly of five or more persons that was likely to cause a disturbance of the public peace, after that assembly had been lawfully commanded to disperse. The offence is not about the original gathering at all — it is about staying on, or turning up, once a competent authority has ordered the crowd to break up. From 1 July 2024 this provision continues as Section 189(5) of the Bharatiya Nyaya Sanhita (BNS) 2023, the consolidated section that now governs unlawful assembly and related public-tranquillity offences.

Punishment under BNS 189(5)

The punishment is the same as under IPC 151 — imprisonment of either description for a term which may extend to six months, or with fine, or with both. It is an ordinarily bailable, comparatively minor offence, but its whole weight rests on one trigger: a lawful order to disperse must already have been given, and the person must have knowingly defied it by remaining or joining.

What changed from IPC to BNS?

There is no major substantive change. The BNS simply gathers the scattered public-tranquillity offences under one umbrella. Section 189 first defines an unlawful assembly and then grades the penalties: knowingly continuing in an unlawful assembly after a disperse order falls under the heavier sub-section 189(3) (up to two years), while continuing in an assembly that is merely likely to disturb the public peace — the old IPC 151 situation — stays at the lighter six-month level under sub-section 189(5).

Worked example

About a dozen people gather outside a municipal office to protest. The crowd is noisy and, fearing a breach of the peace, an Executive Magistrate lawfully orders it to disperse. Most leave; a few knowingly stay put and others arrive to swell the numbers. Those who knowingly remained or joined after the order can be charged under BNS 189(5), even though no stones were thrown and no riot followed.

Practical notes

• For advocates: Hold the prosecution to two elements — that a genuinely lawful command to disperse was actually communicated, and that the accused had knowledge of it yet stayed or joined. If the common object made the gathering an unlawful assembly, check whether the correct charge is 189(3), not 189(5).
• For the accused / citizens: Once a competent authority orders a gathering to disperse, leave promptly; lingering merely to watch can attract liability. Consequences escalate sharply if the assembly turns violent — see liability for whose benefit a riot is committed (IPC 155 to BNS 193(2)) and voluntarily causing hurt (IPC 323 to BNS 115).