BNS Section 51: Liability of an abettor for a different act done (2026)

Explainer · Criminal Law · BNS

Updated for 2026 · Claw Editorial

Section 51 of the Bharatiya Nyaya Sanhita (BNS) deals with a familiar problem. A person abets one act, but a different act is actually done. Section 51 says the abettor is liable for that different act as if it had been directly abetted, but only if the different act was a probable consequence of the abetment and was done under its influence. If you still look up "Section 111 IPC", this is the provision you now need. This explainer sets out what Section 51 covers, the test of probable consequence, and how it maps to the old law. Last verified October 2026.

01Why the section number matters now

Abetment was dealt with by Sections 107 to 120 of the Indian Penal Code (IPC) for more than 160 years. Since 1 July 2024 the IPC is replaced by the Bharatiya Nyaya Sanhita, 2023 (BNS), and the abetment provisions now sit in Sections 45 to 62. The rule about an abettor when a different act is done is now Section 51, which carries forward old Section 111.

This matters in practice. A charge for an offence committed on or after 1 July 2024 is framed under the BNS, so it cites Section 51, not Section 111. An older matter keeps its IPC number, because the law that applies is the law on the date of the offence. For some years you will see both numbers in live cases.

02What Section 51 covers

Section 51 of the BNS answers one question: if a person abets one act, but a different act is done, when is the abettor liable for that different act?

The rule is that the abettor is liable for the different act in the same manner and to the same extent as if that act had been directly abetted. But this applies only where the act done was a probable consequence of the abetment, and was committed under the influence of the instigation, or with the aid or in pursuance of the conspiracy that made up the abetment.

03The probable consequence test

The heart of Section 51 is the test of probable consequence. The abettor is not liable for every act the doer chooses to commit. The abettor is liable only for an act that was a likely outcome of what was instigated, aided or agreed.

The illustrations under the section make this clear:

• A instigates a child to put poison in Z's food and gives the poison. The child by mistake puts it in Y's food instead. A is liable as if A had instigated the poisoning of Y, because that was a probable consequence.
• A instigates B to set fire to a house. B does so and also commits theft inside. A is liable for the arson, but not for the theft, because the theft was a distinct act and not a probable consequence of the abetment.
• A instigates and arms two people to break into an inhabited house at night. During the break-in they murder an occupant who resists. If the murder was a probable consequence of the abetment, A is liable for it.

So the court asks two things: was the act done a probable consequence, and was it done under the influence of the abetment. If both are yes, the abettor is on the hook for the act done.

04Old to new: IPC 111 to BNS 51

Section 111 of the IPC is now Section 51 of the BNS. The rule, the proviso, and the illustrations are carried over without a change of substance. Only the number and drafting have changed.

Because the rule is the same, judgments decided under Section 111 of the IPC still guide how Section 51 of the BNS is read.

05Punishment and classification

Section 51 does not set a separate term of imprisonment. It makes the abettor liable for the act actually done, so the punishment is the one provided for that act, as if the abettor had abetted it.

Classification also follows the act done. Whether the matter is cognizable or non-cognizable, bailable or non-bailable, and which court tries it, is decided by the offence the abettor is held liable for.

06What changed from the old law

For this provision, the change is almost entirely the number. The probable consequence test is carried over from Section 111 of the IPC into Section 51 of the BNS, with the same illustrations.

The wider abetment scheme was renumbered at the same time. If the offence abetted was never committed, different provisions apply, such as Section 55 and Section 56 of the BNS. Concealing a plan to commit an offence is dealt with by Section 58 and Section 60.

07Where Claw fits

Claw is an all-in-one legaltech platform for Indian advocates, law firms, and corporate legal teams, combining AI-based case search, an AI legal assistant (Legal GPT), case management, and compliance automation across all Indian courts and tribunals.

Whether an act done was a probable consequence is decided on the facts of each case, so the practical work is seeing where courts have drawn that line. Claw holds more than 30 crore judgments and answers a query in under 5 seconds, so you can read how Sessions courts and High Courts have applied the probable consequence test under Section 51 or the old Section 111. You can also keep track of a live matter, its orders and hearings, across 9,102 courts, benches and forums by party or advocate name.

On privacy, Claw does not use customer documents to train its AI models, so your briefs and pleadings stay confidential. Start a free Claw account to pull Section 51 case law and follow your own matters at no cost. To search the wider body of law, see case search across Indian courts.

08Sources and further reading

• India Code (official text of the BNS, 2023): indiacode.nic.in
• Section 51, BNS (bare text): devgan.in
• PRS Legislative Research (BNS overview and IPC comparison): prsindia.org
• Claw: clawlaw.in

This explainer is general information, not legal advice. The law changes through amendments and judgments, so check the current text and take advice from counsel before you act.

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