Culpable Homicide under BNS: Section 100, Punishment under Section 105 and Landmark Cases

Culpable homicide is the genus; murder is the species. This is one of the oldest and most important propositions of Indian criminal law. Every murder is a culpable homicide, but not every culpable homicide is a murder. The Bharatiya Nyaya Sanhita, 2023, retains the classical framework of the Indian Penal Code: Section 100 BNS (formerly Section 299 IPC) defines culpable homicide; Section 101 BNS (formerly Section 300 IPC) defines the more serious form of it, murder; Section 103 BNS provides the punishment for murder; and Section 105 BNS provides the punishment for culpable homicide not amounting to murder. This module walks through Section 100, the three degrees of mental element, the distinction from murder, the punishment structure under Section 105, and the leading Indian cases from Reg. v. Govinda through Virsa Singh to Kesar Singh.

1. Introduction

Homicide in Indian criminal law

Homicide, in the general sense, is the killing of a human being by another. The Indian criminal law classifies homicides in a graded framework:

Culpable homicide (Section 100 BNS): the broadest category. Any killing done with the requisite mental element.
Culpable homicide amounting to murder (Section 101 BNS): the most serious form. Cases where the mental element meets the four specific standards of Section 101.
Culpable homicide not amounting to murder (Section 105 BNS): the residual category. Cases that satisfy Section 100 but not Section 101, or that fall within one of the five Exceptions to Section 101.
Causing death by negligence (Section 106 BNS): killings without the culpable homicide mental element, but through rash or negligent conduct.
Non-culpable homicide: killings that fall within general exceptions (private defence, accident, etc.) and are not criminal at all.

The genus-species relationship: culpable homicide and murder

The classical proposition

Culpable homicide is the genus. Murder is the species. Every murder is a culpable homicide, but not every culpable homicide is a murder. Where a killing satisfies Section 100 BNS, it is culpable homicide. Where it also satisfies one of the four clauses of Section 101 BNS, and does not fall within one of the five Exceptions, it is murder. Where it does not satisfy Section 101 or falls within an Exception, it is culpable homicide not amounting to murder.

Overview of the framework

Section 100 BNS: definition of culpable homicide.
Section 101 BNS: definition of murder (the aggravated form of culpable homicide).
Section 103 BNS: punishment for murder.
Section 105 BNS: punishment for culpable homicide not amounting to murder.
Sections 106 to 108 BNS: causing death by negligence, death of a person other than intended, abetment of suicide.

2. Section 100 BNS: Definition of Culpable Homicide

Text of Section 100

Section 100 BNS (formerly Section 299 IPC)

Whoever causes death by doing an act with the intention of causing death, or with the intention of causing such bodily injury as is likely to cause death, or with the knowledge that he is likely by such act to cause death, commits the offence of culpable homicide.

Explanation 1. A person who causes bodily injury to another who is labouring under a disorder, disease or bodily infirmity, and thereby accelerates the death of that other, shall be deemed to have caused his death.

Explanation 2. Where death is caused by bodily injury, the person who causes such bodily injury shall be deemed to have caused the death, although by resorting to proper remedies and skilful treatment the death might have been prevented.

Explanation 3. The causing of the death of a child in the mother's womb is not homicide. But it may amount to culpable homicide to cause the death of a living child, if any part of that child has been brought forth, though the child may not have breathed or been completely born.

The three limbs of the definition

Section 100 identifies three distinct mental elements, any one of which suffices for culpable homicide:

First limb: intention to cause death.
Second limb: intention to cause bodily injury likely to cause death.
Third limb: knowledge that the act is likely to cause death.

The three explanations

The three Explanations elaborate the definition and address specific factual situations that would otherwise be ambiguous.

3. The Three Mental Elements

Intention to cause death

The first limb is the highest form of the culpable homicide mental element. The accused acts with the specific intention of bringing about the death of the victim. He wants the victim to die, and he acts for that purpose. Where this intention is present and death results, culpable homicide is made out. Whether it also amounts to murder depends on the other conditions of Section 101.

Intention is proved from the facts and circumstances. Direct evidence (a confession, a statement, or a threat) is rare. Circumstantial evidence (the nature of the weapon, the seat of injury, the number of blows, the relationship between accused and victim) is usually the basis. The accused's post-offence conduct (flight, concealment of evidence, absence of remorse) can also inform the inference of intention.

Intention to cause bodily injury likely to cause death

The second limb covers the case where the accused did not specifically intend to cause death but did intend to cause a bodily injury that was likely to cause death. The distinction from the first limb is subtle but important:

First limb: intention to kill. The accused wanted the victim to die.
Second limb: intention to cause the specific injury, coupled with the objective fact that the injury was likely to cause death. The accused wanted the injury, but not necessarily death.

Whether the injury was likely to cause death is an objective test. The court examines whether the injury, in the ordinary course of nature or given the specific circumstances, was one that would foreseeably cause death. The accused's intention was directed at the injury; the likelihood of death from that injury is a matter of medical and physical fact.

Knowledge of the likelihood of causing death

The third limb is the lowest form of the culpable homicide mental element. The accused did not intend to cause death or specific injury; he acted with knowledge that his act was likely to cause death. Knowledge here means practical certainty or high probability, not mere possibility. Where the act is one that the accused knew was very likely to cause death, and death results, culpable homicide is made out.

The classical example is dangerous activity conducted with disregard for human life: firing into a crowd, driving at high speed through pedestrian areas, throwing heavy objects from a height into busy streets. The accused may not have wanted anyone in particular to die, but he knew that his act was likely to cause death.

4. The Three Explanations to Section 100

Explanation 1: previously injured or diseased persons

Explanation 1 addresses the eggshell-skull rule of the criminal law. Where the accused causes bodily injury to a person who is already labouring under a disorder, disease, or bodily infirmity, and this accelerates the death of that person, the accused is deemed to have caused the death. The accused cannot escape liability by arguing that a healthy person would not have died from the same injury.

The classical illustration: A punches B, who has a weak heart. B dies of cardiac arrest. A is deemed to have caused B's death, even though the same punch would not have killed a person with a healthy heart. The pre-existing condition does not exculpate the accused.

Explanation 2: proper medical treatment

Explanation 2 addresses the argument that the victim's death could have been prevented by proper medical treatment. The accused cannot escape liability by arguing that proper medical treatment would have prevented death, if the injury was itself of a nature that would ordinarily require such treatment.

The classical illustration: A injures B seriously. B is taken to a hospital but does not receive optimal treatment (delay in admission, absence of a specialist, or otherwise). B dies. A is deemed to have caused B's death, even though optimal treatment would have prevented it. The failure or inadequacy of the treatment does not exculpate A.

Explanation 3: unborn child

Explanation 3 addresses the position of the unborn child. Causing the death of a child in the mother's womb is not homicide. But it may be culpable homicide to cause the death of a living child, once any part of that child has been brought forth from the womb, even if the child has not breathed or been fully born.

The distinction is between the child as unborn (protected by the miscarriage provisions, Sections 88 to 92 BNS) and the child as born (once any part has emerged from the womb). This dividing line has been the subject of some judicial elaboration, particularly in cases of complications during birth.

5. Distinction from Murder

The genus-species relationship

Every murder is a culpable homicide, but not every culpable homicide is a murder. This proposition, first articulated by Melvill J. in Reg. v. Govinda, (1876) ILR 1 Bom 342, has become the classical formulation of the distinction. The relationship between culpable homicide and murder is not one of separate categories but of a graduated hierarchy:

A killing may fail to satisfy Section 100 (no culpable homicide at all). Ordinary accident, mere negligence without knowledge of likelihood of death, or acts under general exceptions fall here.
A killing may satisfy Section 100 but not Section 101 (culpable homicide not amounting to murder). Cases with knowledge but not intention, or cases where the injury was likely to cause death but not sufficient in the ordinary course of nature, fall here.
A killing may satisfy both Section 100 and Section 101, without any Exception applying (murder). This is the ordinary case of intentional killing.
A killing may satisfy Section 101 but fall within one of the five Exceptions (culpable homicide not amounting to murder, again). Sudden provocation, private defence exceeded, and similar cases fall here.

Culpable homicide amounting to murder

Where a killing satisfies both Section 100 and Section 101, and no Exception applies, the offence is murder. It is culpable homicide of a specifically aggravated form. Section 103 provides the punishment: death or imprisonment for life, and fine.

Culpable homicide not amounting to murder

Where a killing satisfies Section 100 but not Section 101 (or falls within an Exception to Section 101), the offence is culpable homicide not amounting to murder. Section 105 provides the punishment: two-tier structure discussed under head 7.

6. Three Degrees of Culpable Homicide

The three degrees within culpable homicide

Culpable homicide of the first degree. Cases satisfying Section 101 (murder), where the intention or knowledge is of the highest order and none of the Exceptions applies. Punished under Section 103 with death or life imprisonment.
Culpable homicide of the second degree. Cases satisfying Section 100 with the first or second limb (intention to cause death or intention to cause bodily injury likely to cause death), but either falling within an Exception to Section 101, or not satisfying the specific conditions of Section 101. Punished under Section 105 Part I with life imprisonment or up to ten years and fine.
Culpable homicide of the third degree. Cases satisfying Section 100 only with the third limb (knowledge of likelihood of causing death), without any intention. Punished under Section 105 Part II with imprisonment up to ten years or fine or both.

The three-degree framework was refined by the Supreme Court in State of Andhra Pradesh v. Rayavarapu Punnayya, (1976) 4 SCC 382, and has become the classical modern statement of the culpable homicide hierarchy.

7. Section 105 BNS: Punishment

Text of Section 105

Section 105 BNS (formerly Section 304 IPC)

Whoever commits culpable homicide not amounting to murder shall be punished with imprisonment for life, or imprisonment of either description for a term which may extend to ten years, and shall also be liable to fine, if the act by which the death is caused is done with the intention of causing death, or of causing such bodily injury as is likely to cause death;

or with imprisonment of either description for a term which may extend to ten years, or with fine, or with both, if the act is done with the knowledge that it is likely to cause death, but without any intention to cause death, or to cause such bodily injury as is likely to cause death.

The two-tier punishment structure

Section 105 Part I (Intention)	Section 105 Part II (Knowledge)
Intention to cause death, OR intention to cause bodily injury likely to cause death.	Knowledge of likelihood of causing death, without intention.
Imprisonment for life, OR imprisonment of either description up to ten years.	Imprisonment of either description up to ten years, OR fine, OR both.
Mandatory fine.	Fine at the court's discretion.
Higher punishment, reflecting the greater blameworthiness of intention.	Lower punishment, reflecting knowledge without specific intention.

Sentencing considerations

The court has significant discretion in sentencing under Section 105. Considerations include:

The nature of the intention or knowledge (first limb vs second limb of Section 100).
The circumstances of the killing (provocation, self-defence, sudden fight).
The relationship between the accused and the victim.
The accused's background, age, and social circumstances.
The possibility of reform and rehabilitation.

Sentences in practice often reflect these considerations. A killing under grave and sudden provocation (Exception 1 to Section 101) may attract a sentence of five to seven years. A killing with clear intention but in a sudden fight (Exception 4) may attract seven to ten years. A killing with knowledge only, without specific intention, may attract three to seven years.

8. Judicial Elaboration and Landmark Cases

Reg. v. Govinda

📖 Reg. v. Govinda, (1876) ILR 1 Bom 342

Melvill J. of the Bombay High Court, in the classical Indian judgment on the culpable homicide-murder distinction, considered a case where the accused had punched his wife who was carrying a child, and had knocked her onto the ground. Her head struck a hard surface and she died. The Court held that the offence was culpable homicide not amounting to murder. The accused had not intended to cause death, and the injury he caused was not one likely to cause death in the ordinary course of nature. The Court laid down the framework that has since been the foundation of Indian homicide law: culpable homicide is the genus; murder is the species. Rule: the four clauses of Section 300 (now Section 101 BNS) are the aggravating conditions that convert culpable homicide into murder.

Virsa Singh v. State of Punjab

📖 Virsa Singh v. State of Punjab, AIR 1958 SC 465

The Supreme Court, per Vivian Bose J., established the classical framework for Section 300 Thirdly (now Section 101(iii) BNS). The Court held that where the accused caused a bodily injury with the intention of causing that specific injury, and the injury was sufficient in the ordinary course of nature to cause death, the offence is murder. The prosecution need not prove that the accused intended to cause death; it is enough that the accused intended to cause the injury, and the injury was of the specified severity. Rule: the four-part Virsa Singh test for Section 300 Thirdly.

Kesar Singh v. State of Haryana

📖 Kesar Singh v. State of Haryana, (2008) 15 SCC 753

The Supreme Court applied the culpable homicide-murder framework to a case where the accused had struck the victim with a stick, causing a head injury from which the victim died. The Court considered whether the offence was murder or culpable homicide not amounting to murder. The Court held that the injury was not of the specific severity required for Section 300 Thirdly, and the offence was culpable homicide not amounting to murder under Section 304 Part I (now Section 105 Part I BNS). Rule: careful application of the Virsa Singh test in blunt-force injury cases.

State of Andhra Pradesh v. Rayavarapu Punnayya

📖 State of Andhra Pradesh v. Rayavarapu Punnayya, (1976) 4 SCC 382

The Supreme Court elaborated the three-degree framework of culpable homicide. The Court held that culpable homicide is graded: (i) culpable homicide amounting to murder, punished under Section 302 IPC; (ii) culpable homicide not amounting to murder with intention, punished under Section 304 Part I; and (iii) culpable homicide not amounting to murder with knowledge only, punished under Section 304 Part II. The judgment is the modern authoritative statement of the graded framework. Rule: three-degree hierarchy of culpable homicide.

📖 Willie (William) Slaney v. State of Madhya Pradesh, AIR 1956 SC 116

The Supreme Court considered the circumstances in which culpable homicide amounts to murder. The Court elaborated the mental elements of Section 300 (now Section 101 BNS) and the interaction between the four clauses. The judgment is often cited for its analytical approach to the culpable homicide-murder distinction.

📖 Kesar Singh v. State of Haryana, (2008) 15 SCC 753

The Supreme Court applied the classical framework to a case involving a stick injury. Discussed above. The judgment illustrates how the same physical act may be culpable homicide not amounting to murder depending on the specific mental element and the nature of the injury.

📖 Camilo Vaz v. State of Goa, (2000) 9 SCC 1

The Supreme Court considered the interaction between Section 299 and Section 300 IPC (now Sections 100 and 101 BNS) and reiterated the graded framework. The Court emphasised that the classification of a killing depends on the specific mental element and the specific factual context. Rule: consistent modern application of the graded framework.

9. The Sentencing Framework

Sentencing considerations under Section 105

Section 105 Part I (intention to cause death, or intention to cause bodily injury likely to cause death). The court has discretion between life imprisonment and imprisonment of either description up to ten years, with mandatory fine.
Section 105 Part II (knowledge of likelihood, without intention). The court has discretion between imprisonment of either description up to ten years, and fine, and both.
Aggravating factors: premeditation, cruelty, killing of a vulnerable victim, killing of a public servant on duty, use of a dangerous weapon, killing in a public place, killing that shocks the community's conscience.
Mitigating factors: sudden provocation, quarrel between friends or relatives, absence of prior criminal record, youth of the accused, family responsibilities, possibility of reform.

10. Consolidated Landmark Judgments

Reg. v. Govinda, (1876) ILR 1 Bom 342. Foundational case. Culpable homicide is the genus, murder the species.
Virsa Singh v. State of Punjab, AIR 1958 SC 465. Section 300 Thirdly test. Classical framework.
Willie Slaney v. State of Madhya Pradesh, AIR 1956 SC 116. Analytical approach to Section 300.
State of Andhra Pradesh v. Rayavarapu Punnayya, (1976) 4 SCC 382. Three-degree framework of culpable homicide.
Kesar Singh v. State of Haryana, (2008) 15 SCC 753. Application of Virsa Singh to blunt-force cases.
Camilo Vaz v. State of Goa, (2000) 9 SCC 1. Modern statement of the graded framework.
Anda v. State of Rajasthan, AIR 1966 SC 148. Interaction between the second and third limbs of Section 299.
K. M. Nanavati v. State of Maharashtra, AIR 1962 SC 605. Grave and sudden provocation. Application of Exception 1.
Nga Kyaw v. Emperor, (1936) 39 CriLJ 691. Explanation 1 to Section 299 (pre-existing conditions).
Emperor v. Idu Beg, ILR (1881) 3 All 776. Explanation 2 to Section 299 (proper treatment).
Bishan Singh v. State of Punjab, AIR 1974 SC 1181. Distinction between culpable homicide amounting to murder and not amounting to murder.
Mannu v. State of Uttar Pradesh, (1979) 3 SCC 118. Application of Section 304 Part I in a family dispute killing.
Jagriti Devi v. State of Himachal Pradesh, (2009) 14 SCC 771. Sentencing under Section 304 Part I in a wife murder case.
Kailash Kaur v. State of Punjab, (1987) 2 SCC 631. Culpable homicide by a wife in a dowry harassment context.

Frequently Asked Questions

What is Section 100 BNS?

Section 100 of the Bharatiya Nyaya Sanhita, 2023 (formerly Section 299 IPC), defines culpable homicide. It applies to any person who causes death by an act done with (i) the intention of causing death; (ii) the intention of causing bodily injury likely to cause death; or (iii) the knowledge that the act is likely to cause death. Any of the three mental elements suffices.

What is the difference between culpable homicide and murder under the BNS?

Culpable homicide (Section 100 BNS) is the genus; murder (Section 101 BNS) is the species. Every murder is a culpable homicide, but not every culpable homicide is a murder. Where a killing satisfies both Section 100 and Section 101, and no Exception to Section 101 applies, it is murder. Otherwise, it is culpable homicide not amounting to murder. The distinction is the central question in most homicide trials.

What are the three degrees of culpable homicide?

Three degrees: (i) culpable homicide of the first degree, that is murder under Section 101, punished under Section 103 with death or life imprisonment; (ii) culpable homicide of the second degree, being culpable homicide not amounting to murder with intention to cause death or intention to cause bodily injury likely to cause death, punished under Section 105 Part I with life imprisonment or up to ten years and fine; (iii) culpable homicide of the third degree, being culpable homicide with knowledge only, punished under Section 105 Part II with up to ten years or fine or both.

What is Section 105 BNS?

Section 105 BNS (formerly Section 304 IPC) provides the punishment for culpable homicide not amounting to murder. Part I applies where the act was done with intention to cause death, or intention to cause bodily injury likely to cause death: life imprisonment or up to ten years, and mandatory fine. Part II applies where the act was done with knowledge only, without intention: up to ten years, or fine, or both.

What are the three Explanations to Section 100 BNS?

Three Explanations: (i) Explanation 1 provides that where the victim was already labouring under a disorder, disease, or infirmity, and the accused's bodily injury accelerates the death, the accused is deemed to have caused the death; (ii) Explanation 2 provides that the accused cannot escape liability by arguing that proper medical treatment would have prevented death; (iii) Explanation 3 provides that causing the death of an unborn child is not homicide, but causing the death of a child that has been partially born may be culpable homicide.

What is the Virsa Singh test?

In Virsa Singh v State of Punjab, AIR 1958 SC 465, the Supreme Court laid down a test for Section 300 Thirdly (now Section 101(iii) BNS). Four elements: (i) the accused caused a bodily injury; (ii) the injury was intended (that is, was not accidental or unintentional); (iii) the injury was the one that the accused actually intended; and (iv) the injury was sufficient in the ordinary course of nature to cause death. Where all four are established, the offence is murder, not merely culpable homicide.

Culpable Homicide Section 100 BNS