Section 100 of the Indian Penal Code, 1860 (IPC), provided circumstances in which a person defending the body may lawfully cause death or other harm to an assailant. The corresponding provision is Section 38 of the Bharatiya Nyaya Sanhita, 2023 (BNS), effective from 1 July 2024. The defence is subject to the restrictions in IPC Section 99 or BNS Section 37, as applicable.
Section 100 IPC: Scope of the statutory rule
The right of private defence of the body extends, subject to the restrictions in the preceding section, to voluntarily causing death or any other harm to the assailant when the offence occasioning the defence is one of the seven types below. These categories are carried forward in BNS Section 38.
Seven circumstances under IPC Section 100 and BNS Section 38
- Death: An assault reasonably causing apprehension that death will otherwise result.
- Grievous hurt: An assault reasonably causing apprehension that grievous hurt will otherwise result.
- Rape: An assault with the intention of committing rape.
- Unnatural lust: An assault with the intention of gratifying unnatural lust (the wording retained in the statute).
- Kidnapping or abduction: An assault with the intention of kidnapping or abducting.
- Wrongful confinement: An assault intended to wrongfully confine someone in circumstances reasonably suggesting they cannot obtain release through public authorities.
- Acid attack: Throwing or administering acid, or attempting to do so, where grievous hurt may reasonably be apprehended.
The list above paraphrases the seven statutory clauses. For exact enacted language, consult the official government sources linked below.
Important legal terms explained
Reasonable apprehension
A fear of the specified harm supported by the circumstances as they reasonably appear at the time. Actual death or grievous injury need not occur before the right can arise; mere speculation or an imagined threat is insufficient.
Grievous hurt
A legally defined category of serious injury. Its definition appears in IPC Section 320 for the older law and BNS Section 116 under the current code. Not every minor injury amounts to grievous hurt.
Private defence of the body
The right to protect oneself or another person against an offence affecting the human body. See IPC Section 96 (BNS Section 34) and IPC Section 97 (BNS Section 35).
Restrictions: IPC Section 99 and BNS Section 37
Even where one of the seven situations is present, private defence is restricted. It cannot justify inflicting more harm than is necessary for defence. The law also limits the right in specified situations involving public servants acting in good faith under colour of office, and where there is time to seek protection from public authorities. The statutory qualifications and explanations matter in each case.
Read the related provision: IPC Section 99 - Acts against which there is no right of private defence.
When does the right begin and end?
IPC Section 102, corresponding to BNS Section 40, states that the right of private defence of the body begins when reasonable apprehension of danger arises from an attempt or threat to commit the offence, even if the offence has not been completed. It continues only while that apprehension persists. Retaliation after the danger has ended is not the same as defence.
Practical illustrations
- Threat with a lethal weapon: An assailant advances with a weapon in circumstances reasonably suggesting an imminent fatal attack. The first clause may become relevant, subject to necessity and the other restrictions.
- Attempted kidnapping: A person uses force to abduct another. The fifth clause may be relevant, but the defensive response must still satisfy the legal limits.
- Acid attack: A person attempts to throw acid in circumstances reasonably indicating likely grievous hurt. The seventh clause expressly addresses this danger.
- Danger has passed: If the attacker has fled and there is no continuing reasonable apprehension, pursuit to inflict fatal harm is not automatically protected by private defence.
These examples are illustrative only; application depends on evidence and the full circumstances.
IPC and BNS comparison
| Issue | Indian Penal Code, 1860 | Bharatiya Nyaya Sanhita, 2023 |
|---|---|---|
| Defence extending to causing death | Section 100 | Section 38 |
| Restrictions on private defence | Section 99 | Section 37 |
| When bodily defence begins and continues | Section 102 | Section 40 |
| Grievous hurt definition | Section 320 | Section 116 |
The BNS generally governs conduct occurring from its commencement on 1 July 2024. For earlier conduct, the applicable law and savings or transitional provisions must be assessed separately.
Frequently asked questions
Does Section 100 IPC allow killing in every case of self-defence?
No. It applies only in specified situations, and the restrictions on necessary force remain applicable.
Which BNS section corresponds to IPC Section 100?
BNS Section 38 is the corresponding provision concerning private defence of the body extending to causing death.
Must a person wait to be injured before defending themselves?
No. The law recognises a right arising from reasonable apprehension of danger, but the nature of the threat and the necessity of the response are crucial.
Can a person defend someone else?
Yes. The general right of private defence of the body includes protection of another person, subject to the applicable statutory limits.
Official legislation and government references
- Ministry of Home Affairs - New Criminal Laws
- National Crime Records Bureau - BNS Chapter Text
- Bureau of Police Research and Development - New Criminal Laws
- India Code - Official Central Legislation Repository
Disclaimer: This article is general legal information, not advice for any specific incident. The precise legal position depends on the date, facts and applicable statutory provisions.