Adultery in India: Why It Was Once a Crime and Why the Supreme Court Decriminalized It
A look at Section 497 of the Indian Penal Code, the reasoning behind its repeal, and what remains of the law on marital fidelity today.
For more than 150 years, the answer in India was yes.
Under Section 497 of the Indian Penal Code, 1860, adultery was a criminal offence punishable with imprisonment. However, in 2018, the Supreme Court of India fundamentally altered this legal position by declaring the provision unconstitutional.
The judgment sparked widespread debate. Many believed that the Supreme Court had "legalized" adultery, while others feared that the institution of marriage had lost legal protection. Neither perception is accurate.
The Court did not declare adultery to be morally acceptable. It merely held that a consensual extramarital relationship between adults should not be punished through criminal law. Adultery continues to have serious legal consequences under matrimonial law, including serving as a ground for divorce.
This article examines why adultery was criminalized, why the law came under constitutional scrutiny, and how the Supreme Court reshaped the legal position in India.
What is Adultery?
Adultery refers to a voluntary sexual relationship between a married person and someone other than his or her spouse.
Rahul and Priya are legally married. Priya voluntarily enters into a sexual relationship with Aman. This constitutes adultery because one of the parties is married.
While such conduct may amount to a breach of marital obligations and constitute a ground for divorce, the question before the Supreme Court was whether it should also amount to a criminal offence punishable with imprisonment.
How Did the Law Treat Adultery Before 2018?
Until 2018, adultery was governed by Section 497 of the Indian Penal Code, 1860. The provision stated that:
- A man who had sexual intercourse with a married woman, without the consent or connivance of her husband, committed the offence of adultery.
- The punishment could extend to five years' imprisonment, or fine, or both.
- The married woman could never be prosecuted as an offender.
At first glance, the provision appeared to protect women. In reality, it reflected the patriarchal mindset of nineteenth-century society.
Example 1 — The Married Woman
Rohan knowingly enters into a consensual sexual relationship with Neha, a married woman. Under the old law, Rohan could be prosecuted and punished — Neha could never be prosecuted, despite being an equal participant.
Example 2 — Husband's Consent
Assume the same facts. If Neha's husband had consented to, or connived at, the relationship, no criminal offence was committed. Thus, the existence of the offence depended upon the husband's consent — not the wife's.
Example 3 — Married Man with an Unmarried Woman or Widow
Suppose Rohan, who is married, has a consensual relationship with an unmarried woman or a Widow. Section 497 did not apply — the law only protected the marital rights of the husband of a married woman.
Why Was Adultery Made a Criminal Offence?
To understand the rationale behind Section 497, one must look at the social and legal conditions prevailing in 1860, when the Indian Penal Code was enacted during British colonial rule.
1. Protection of Marriage
Marriage was regarded as the foundation of social order. Extramarital relationships were considered a threat to family stability, and criminal punishment was seen as a means of preserving the sanctity of marriage.
2. Protection of the Husband's Rights
The law viewed the wife as being under the legal authority and protection of her husband. When another man entered into a relationship with a married woman, the offence was perceived as an invasion of the husband's marital rights rather than a wrong committed jointly by two consenting adults.
This explains why only the man could be punished, only the husband could initiate prosecution, and the husband's consent or connivance prevented the act from constituting an offence. The wife was not treated as an independent legal actor.
3. Patriarchal Social Structure of the Nineteenth Century
Section 497 reflected the patriarchal social structure of the nineteenth century. At that time, husbands were generally the earning members of the household who interacted with society, while wives were expected to remain within the household. Consequently, an extramarital relationship was perceived to bring public humiliation primarily upon the husband, whose honour and social standing were thought to be affected.
Influenced by these social norms, the law treated adultery as an offence against the husband's rights and public morality. It was assumed that the wife was a victim of seduction rather than an equal participant, which is why only the man involved could be prosecuted, while the wife was exempt from criminal liability.
Why Was Section 497 Criticized?
As Indian society evolved, Section 497 remained rooted in nineteenth-century assumptions. Gradually, it came to be viewed as incompatible with the Constitution.
It Denied Women Equal Status
The law assumed that women lacked independent agency and were incapable of making autonomous decisions. Instead of treating women as equal participants, it portrayed them as passive victims, even where the relationship was entirely consensual.
It Treated Women Like Property
The provision effectively suggested that a wife's sexuality was subject to her husband's control. Whether an offence existed depended upon the husband's consent, while the wife's own consent had little legal significance. Such an approach was inconsistent with the constitutional recognition of women as equal individuals.
It Was Gender Discriminatory
Only the man involved with a married woman could be punished. Neither the married woman nor a married man involved with an unmarried woman attracted criminal liability. This arbitrary classification violated the constitutional guarantee of equality.
The Landmark Judgment
Everything changed in Joseph Shine v. Union of India (2018), where a Constitution Bench of the Supreme Court unanimously struck down Section 497 of the Indian Penal Code. The Court held that the provision violated the fundamental rights guaranteed under the Constitution.
Why Did the Supreme Court Strike It Down?
Equality before the law. Section 497 punished only one participant in a consensual relationship while exempting the other. Such an arbitrary distinction lacked any rational basis and violated the guarantee of equality.
No discrimination on the ground of sex. The provision was founded upon the stereotype that women required protection because they lacked independent agency — a paternalistic assumption the Constitution does not permit.
Dignity, privacy and personal autonomy. Dignity, privacy and decisional autonomy are integral facets of the right to life and personal liberty. Adultery may be a moral wrong, but criminal law should not intrude into every private consensual relationship between adults.
Marriage Does Not Confer Ownership
One of the most significant observations made by the Supreme Court was that a husband is not the master of his wife. Marriage is a relationship of equals, founded on mutual respect and companionship — not ownership or control.
Criminal Law Should Address Public Wrongs
Criminal law is intended to punish conduct that causes harm to society at large, such as murder, rape, robbery or cheating. Adultery, while capable of causing profound emotional distress and the breakdown of a marriage, primarily affects the private relationship between spouses. The Court therefore concluded that matrimonial remedies — not criminal sanctions — are the appropriate legal response.
Does Decriminalization Mean Adultery Is Legal?
The Supreme Court did not endorse or encourage adultery. It merely held that adultery should no longer attract criminal punishment. It continues to have important civil consequences. A spouse may rely upon adultery as:
- a ground for divorce under the Hindu Marriage Act, 1955 and other personal laws;
- evidence supporting allegations of matrimonial cruelty, depending on the facts of the case;
- a relevant circumstance in maintenance proceedings; and
- a factor that may be considered in child custody disputes where the welfare of the child is affected.
A Constitutional Shift
The decision in Joseph Shine represents a significant shift from colonial-era morality to constitutional values. The judgment reaffirmed that:
- women are autonomous individuals, not the property of their husbands;
- spouses enjoy equal dignity and status within a marriage;
- personal autonomy survives marriage; and
- criminal law should be reserved for genuine public wrongs rather than private moral failings.
The institution of marriage remains protected — but through matrimonial law rather than criminal prosecution.
Conclusion
The decriminalization of adultery did not weaken the institution of marriage. Instead, it reaffirmed the Constitution's commitment to equality, dignity and personal liberty.
Marriage continues to impose duties of fidelity, trust and mutual respect. A breach of those duties can still have serious legal consequences through divorce and other matrimonial remedies. What the Supreme Court rejected was the use of criminal law to enforce marital fidelity.
The journey from Section 497 of the Indian Penal Code to the decision in Joseph Shine illustrates the evolution of Indian constitutional jurisprudence. It reminds us that while morality may influence the law, every law must ultimately conform to the constitutional values of equality, dignity and individual autonomy.
Let’s wrap up this legal insight here. Stay tuned for the next breakdown, where another complex aspect of property law in India will be simplified with clarity and precision.
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Written by: Anpama Singh | Legal Blogger
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