Suppose you’re walking home late at night when two people come, start harassing and forcing you. One of them takes out a knife, and with the intention to yourself, you push him, causing him to fall and hit his head on the road. In a while, the police arrive, and you start to worry that they might take you as the accused.
This fear has led to the introduction of self-defence law in India. The law protects you when you act to defend yourself, someone, or any property. But it protects you till a limit, and the limit decides whether the court sees you as a victim or an accused.
This guide explains the right of private defence under the Bharatiya Nyaya Sanhita (BNS), 2023, how far you can go, what the Supreme Court has said, and what you should do after an incident. If you are dealing with a real situation right now, speak to an experienced criminal lawyer before you give a detailed statement to the police.
What is Self-Defence Law in India and Is It Legal?
In legal language, self-defence is the right to private defence. Section 34 of the BNS says that any action taken to exercise the right to private defence is not an offence.
Like, police can’t be everywhere at any time, right? So if someone faces sudden harm and there is no one to protect them, then the law allows them to protect themselves, even if the act causes harm to the attacker.
So, two important things to understand:
- This right is a shield, not a weapon, which means it exists to protect and stop an attack, not to punish the attacker.
- Claiming it’s self-defence does not stop police from conducting an investigation. The police can register the case and do their investigation.
Self Defence Law in India Under the BNS: What Changed From the IPC?
The Bharatiya Nyaya Sanhita replaced the Indian Penal Code on 1 July 2024. For incidents on or after that date, the BNS applies. For older incidents, the IPC still applies. The substance of the law has largely been carried forward, so court rulings given under the IPC are still widely relied on.
Here is how the old and new sections match. You can read the official text of the Bharatiya Nyaya Sanhita, 2023 on India Code.
| Topic | IPC Section | BNS Section |
|---|---|---|
| Acts done in private defence are not offences | Section 96 | Section 34 |
| What can be defended (body and property) | Section 97 | Section 35 |
| Defence against persons of unsound mind, minors, intoxicated persons | Section 98 | Section 36 |
| Acts against which there is no right of private defence | Section 99 | Section 37 |
| When defence of the body can cause death | Section 100 | Section 38 |
| When defence of the body can cause harm other than death | Section 101 | Section 39 |
| When the right over the body starts and ends | Section 102 | Section 40 |
| When defence of property can cause death | Section 103 | Section 41 |
| When defence of property can cause harm other than death | Section 104 | Section 42 |
| When the right over property starts and ends | Section 105 | Section 43 |
| Deadly assault where an innocent person may be harmed | Section 106 | Section 44 |
What Can You Defend Under the Right of Private Defence?
Section 35 of the BNS covers what you can protect:
- Your body or anyone else’s body; you have the right to protect yourself and other persons from any attack such as assault, hurt, or attempt of murder.
- Your property or anyone else’s property, movable or immovable property, from threats of theft, robbery, mischief, etc.
This means that your rights are not limited to you only; if you step in to protect a stranger from danger, then this right covers that also, until it’s lawful and for protection only.
Section 36 adds that the right exists even if the attacker is a child, a person of unsound mind, or someone who is intoxicated. The danger to you is real, whether or not the attacker is legally responsible.
When Does Your Right to Self-Defence Start and When Does It End?
Timing is the most important concept of self-defence law in India; it helps decide when a case begins and ends.
For the body, Section 40 of BNS: The right begins as soon as there is a reasonable apprehension of danger; even if the attacker has only threatened or attempted the offence, you don’t have to wait for them to fulfil their intention ot hit first. And this continues till the apprehension continues.
For example, the attacker attacks you, and you use force to protect yourself; when either the attacker flees, or you have disarmed them, the danger ends there; with it the right also ends.
For property, Section 43 of BNS: The right starts when there is a reasonable apprehension of danger to the property. How long it lasts depends on the offence:
- Theft: The right remains until the thief has got away with the property, help from the public authorities is obtained, or the property is recovered.
- Robbery: Till there is a fear that the offender can cause harm or attempt to cause death, hurt, or wrongful restraint.
How Much Force Can You Use in Self-Defence?
This is a very important clause to understand. Because yes, the law does not expect you to calculate the force before self-defence. But the law does expect your reaction to be responsible, and the force should not be more than necessary.
Here’s what the court looks at first before deciding a case:
- The kind of threat, like the weapons used, number of attackers, attack on property or body
- Injuries of both sides
- Time and place of incident
- Whether you had the chance to seek help from the police
- Whether the force continued after the danger had subsided or gone
Expert advice from Adv. Dheekshanya: Injuries matter a lot in self-defence cases, so right after any incident like this, you must get a medical checkup even if the injuries are minor. This helps in proving the attack was real and not one-sided.
Can You Kill Someone in Self-Defence in India?
As per Section 38 of the BNS, yes, but only in specific and serious circumstances. This Section says that the right of private defence can extend to causing death when the attacker causes the fear or attempt of death, grievous hurt, rape, kidnapping, or abduction.
The threats must fall within these categories, or otherwise Section 39 applies, which means you can use force to protect yourself, but it should not cause death. For example, a threat of slapping or pushing does not justify killing.
Even when Section 38 applies, there are certain limits, like the danger must be real and immediate and you must not use force more than necessary.
Can You Use Force or Kill to Protect Your Property?
You can use force to protect property, but the law allows death only in narrow cases.
| Situation | What the law allows |
|---|---|
| Ordinary theft, mischief or criminal trespass | Force short of causing death (Section 42) |
| Robbery | Causing death is allowed (Section 41) |
| House-breaking by night | Causing death is allowed (Section 41) |
| Setting fire to a building used as a home or to store property | Causing death is allowed (Section 41) |
| Theft, mischief or house-trespass that reasonably causes fear of death or grievous hurt | Causing death is allowed (Section 41) |
When Can You NOT Claim Self-Defence?
The right for private defence is limited by Section 37 and the court’s ruling. Here are the situations that you cannot claim as self-defence:
- When you use it against a public servant who was acting in good faith.
- When you had a real chance to seek help from the public authorities.
- When you still use force after the threat has ended.
- When you use force more than necessary.
- When you created the danger yourself, the right protects those who suddenly confront danger, not those who brought it on himself.
What Should You Do After Using Force in Self-Defence?
If you have been attacked, then here’s what you should do in the first few hours:
Step 1: Make sure you are safe
First, move away from the danger and ensure your safety. Do not continue to engage once the threat has ended.
Step 2: Call the police and get medical help
Call 112 (the emergency number) or go to the nearest police station. Get medical attention for yourself, and for the other person if they are injured.
Step 3: Preserve evidence
Try to preserve the evidence, like any photos of injuries and the place; save CCTV or mobile footage if available. Do not clean or change the scene.
Step 4: Speak to a lawyer before a detailed statement
You should cooperate with the police, but a loosely worded statement can be used against you later. A lawyer can help you state the facts clearly and accurately.
Step 5: Expect an investigation
Even if you have explained the whole situation, the police will conduct an investigation, so cooperate with them and consult with a lawyer.
What if You Used More Force Than the Law Allows?
This is called exceeding the right of private defence, and the consequences can still be serious. But the law gives some relief.
Under Exception 2 to Section 101 of the BNS, if a person in good faith exercises the right of private defence, exceeds the power given by law and causes death, without premeditation and without intending to do more harm than necessary, the offence is culpable homicide not amounting to murder and not murder. Punishment for this offence is provided under Section 105 of the BNS.
This is a reduced charge, not a full defence. The facts of each case decide how it is treated.
How Do Courts Evaluate Evidence in a Self-Defence Case?
Self-defence cases are handled based on facts. Here is the practical evidence the court uses in case assessment:
- Medical Records: A medical check-up soon after the incident helps link the injuries with the actual event.
- Injuries on both sides: This helps measure the seriousness of the case, who attacked first, and whether the response matched the threat.
- CCTV and mobile recordings: These can show who approached first, whether the attacker was armed, and whether the force continued after the threat ended.
- Witness statements: Statements of the witnesses who have no relation with either side.
- Sequence and timing: In Buta Singh v. State of Punjab (1991), the Supreme Court said that if an act done in the name of self-defence was really an assault on the original aggressor after the apprehension had ended, the plea can be rejected.
Common Mistakes and Myths about Self-Defence Law in India
Here are some common mistakes and myths that you should be aware of and avoid in self-defence:
- That you can kill anyone who enters your house: Not true; death is only allowed in the situation listed in Sections 38 and 41.
- Self-defence means I won’t be arrested: Not true; the police can do their investigation, and you might need to get bail.
- Continuing to hit even after the attacker is disarmed or running away: The right ends there when the threat ends.
- Taking the law into your own hands when the police could be called: If there was time to seek help, the defence may fail.
How Can Kamal & Co. Advocates Help in a Self-Defence Case?
Self-defence cases depend on facts, timing, and evidence. At Kamal & Co. Advocates, our criminal law team starts by understanding what exactly happened, what the FIR states, medical records, and available evidence to see whether the right of private defence applies. We can assist with:
- Advice on your rights during police questioning
- Anticipatory bail and regular bail applications
- Quashing of FIR petitions before the High Court
- Representation during trial.
