Subramanian Swamy v Union of India: cyber defamation

By Advocate Panchanand Shaw, Bar Council of West Bengal · Published 4 Nov 2026 · Cyber law

Subramanian Swamy v Union of India upheld the constitutionality of criminal defamation in 2016, holding that reputation is part of the Article 21 right to life. The offence now sits in section 356 of the BNS, 2023, but the reasoning, the exceptions and the practical risks carry over to online posts.

Subramanian Swamy v Union of India is the judgment that kept criminal defamation on the statute book in India. On 13 May 2016, a two-judge bench of the Supreme Court dismissed a batch of writ petitions that had challenged sections 499 and 500 of the Indian Penal Code, and with them section 199 of the Code of Criminal Procedure. The Court held that criminalising defamation is not an excessive restriction on the freedom of speech and expression, and that the reputation of a person is itself a part of the right to life under Article 21.

For anyone dealing with an online post, a review, a video or a thread that has damaged their name, that decision is the practical starting point. After July 2024 the same offence lives in the Bharatiya Nyaya Sanhita, 2023, but the reasoning, the defences and the risks all carry over. This article explains what the judgment decided, how the law now applies to material published online, and what a complainant or an accused person should realistically expect.

What the Supreme Court actually decided

The petitions argued two things. First, that punishing defamation with imprisonment is a disproportionate restriction on free speech. Second, that the language of section 499 is so vague that a person cannot know in advance what is prohibited. The Court rejected both. It reasoned that the right to freedom of speech cannot be given so much room that reputation, which it described as a constituent of the Article 21 right to life, has no protection at all. It also rejected the vagueness argument, holding that the meaning of defamation had been settled by long usage and was understood by the framers of the Constitution when they wrote it into Article 19(2) as a permissible ground for restricting speech.

The Court reached that conclusion through a balancing exercise. It noted that the Constitution permits reasonable restrictions on speech in the interests of, among other things, defamation, and that this word in Article 19(2) has stood on its own since 1950. It examined how other legal systems treat reputation, and it relied on the Constituent Assembly debates to show that the framers intended reputation to sit alongside speech rather than beneath it. The result is a rule that neither right is absolute: speech can be regulated where reputation is genuinely harmed.

The Court did add a caution. It observed that the criminal process should not be used as a tool of harassment, and it is open to a court, at the stage of issuing process, to look at the complaint and consider whether it discloses the offence at all. In practice, that caution is where most of the fighting in a defamation case actually happens, long before any trial.

Why the Court treated reputation as part of Article 21

The judgment leaned on the idea that fundamental rights must be balanced rather than ranked absolutely. Freedom of speech matters, but so does the dignity of the person whose character is attacked. The Court placed reputation inside Article 21, which meant that a defamatory statement does not merely harm a private interest; it engages a constitutional right of the person defamed.

That framing has consequences that survive the change of statute. It means a defence that rests purely on "I had a right to say it" will rarely succeed on its own. A person accused of defamation generally has to show that the statement fell within one of the recognised exceptions, not merely that it was speech.

What changed in July 2024: from IPC 499 to BNS 356

The Bharatiya Nyaya Sanhita, 2023 replaced the Indian Penal Code with effect from 1 July 2024. Defamation is now dealt with in section 356 of the BNS. The substance is materially the same: what matters is the making or publishing of an imputation concerning a person, intending to harm, or knowing or having reason to believe that it will harm, that person's reputation. The exceptions that protect truth published for the public good, fair comment on public conduct, and good-faith criticism of a public performance are carried forward.

Conduct that occurred before 1 July 2024 continues to be governed by sections 499 and 500 of the IPC and by the procedure in the Code of Criminal Procedure. That is why older reported cases still cite the IPC sections, and why a complaint about an old post has to identify the correct statute for the date of the publication.

Question	Criminal defamation	Civil defamation
Who starts it	The State, on a complaint by the aggrieved person	The aggrieved person files a suit
Standard of proof	Beyond reasonable doubt	Balance of probabilities
Usual outcome	Fine, simple imprisonment, or both	Damages and sometimes an injunction
Typical timeline	Depends on the criminal process; can be slow	Variable, often slow but negotiable

How the same law applies to a post, review or video

Online publication does not create a new offence. It changes the evidence. A defamatory statement in a tweet, a blog, a Google review, a YouTube video, a WhatsApp forward or a comment thread is still a publication, and the fact that it was uploaded rather than printed makes no difference to the definition. What the internet adds is reach, permanence and the ease of reproducing the statement, all of which can matter when a court assesses the harm or considers an injunction.

Jurisdiction is the practical wrinkle. A post uploaded abroad but readable in Kolkata is, in the ordinary understanding, published where it is read. That gives an Indian complainant a foothold, but it also means the defendant may argue that the wrong forum has been chosen or that the material is too remote from the place of filing. Courts engage with this question case by case, and it is one of the first issues a defendant raises.

The IT Act sits alongside. Section 79 gives an intermediary a conditional safe harbour for third-party content, which means a platform is generally not the defamer. However, a platform that is put on notice and does not act loses that protection, and the IT Rules, 2021 require a grievance officer and a time-bound response to complaints about unlawful information. Where the defamation is combined with impersonation, such as a fake account in the victim's name, sections 66C and 66D of the IT Act become available as additional counts.

The defences that usually decide a case

Truth for the public good: a true statement is a defence if publishing it also served the public interest, not merely the speaker's.
Fair comment: an opinion on the conduct of a public figure or on a matter of public interest is protected if it is honestly held and expressed as opinion.
Good faith: statements made in good faith for the protection of the speaker's or another's interest, or for the public good, fall within the exceptions.
No publication: if the imputation never reached a third person, the offence is not made out, which is why private messages differ from public posts.
No intention or knowledge of harm: the section requires that the speaker intended to harm, or knew or had reason to believe that harm would follow.

If someone has defamed you online

Preserve before you react. Save the post, the URL, the account handle and a dated screenshot with the timestamp visible. Do not engage with the poster in public.
Send a notice. A written notice to the person and to the platform's grievance officer asks for a retraction and removal, and fixes the platform with knowledge under the IT Rules, 2021.
Decide the track. A criminal complaint seeks punishment; a civil suit under civil litigation seeks damages and an injunction. Many complainants run both, with the criminal complaint creating pressure and the civil suit chasing money.
File the complaint before the right magistrate. The complainant must be the person aggrieved. Attach the preserved evidence and a short statement of what is false and why.
Consider the platform route separately. A takedown notice often removes the material far faster than a court order, though it does nothing about the underlying dispute.
Keep the record of harm. Loss of work, cancelled contracts or medical treatment connected to the statement all become relevant to compensation.

An interim injunction is often the remedy that matters most in practice. A person whose reputation is under active attack may ask a civil court to restrain further publication while the suit continues, and courts have been willing to grant such relief where the material is plainly defamatory and the harm is continuing. A criminal complaint, by contrast, rarely produces quick relief, because it has to move through investigation or a magistrate's summons before anything changes.

If a defamation complaint has been filed against you

The first thing to do is read the complaint for the specific imputation. A defamation complaint has to identify the exact words or images, the person they concern, and how harm was intended or expected. Complaints that are vague on these points are often challenged at the stage of process. The second step is to check the exceptions: was the statement true, was it opinion, was it made in good faith, and was it published to anyone beyond the complainant? The third is to preserve your own evidence of context, because a screenshot of one post is often misleading without the thread around it.

Where an FIR or a criminal complaint exists, anticipatory or regular bail may be relevant depending on the offence and the stage. Questions about arrest and release are usually discussed with criminal defence counsel, because the route depends on whether the case is a magistrate complaint or a police case.

Common mistakes

Responding with a defamatory post of your own, which may hand the other side a counter-complaint.
Deleting the original posts before preserving them, which destroys the best evidence and can look like concealment.
Assuming a platform is legally responsible for what a user posted, when section 79 generally says otherwise.
Filing a criminal complaint purely to pressure someone in a business dispute, which courts increasingly notice and deprecate.
Overlooking the date of publication, which decides whether the IPC or the BNS applies to your facts.

When to involve a lawyer

Defamation is one of the few areas where the quality of the first document decides the pace of everything after it. A notice, a complaint or a defence draft that gets the imputation, the exemptions and the statutory provision right saves months. If you are dealing with online material that has damaged your reputation, you can contact the office to assess whether the criminal, civil or platform route fits your facts, and what each would realistically involve.

The law after Subramanian Swamy is settled on the central point: criminal defamation is valid and reputation is protected. What remains fact-specific is everything else, including whether a particular post crosses the line from pungent opinion into a punishable imputation.

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Frequently asked questions

What did Subramanian Swamy v Union of India decide?

On 13 May 2016 the Supreme Court upheld the constitutional validity of sections 499 and 500 of the Indian Penal Code, along with section 199 of the Code of Criminal Procedure. The Court held that criminalising defamation is not an excessive restriction on free speech, and that a person's reputation is a constituent of the right to life under Article 21.

Is criminal defamation still legal in India after 2024?

Yes. The Bharatiya Nyaya Sanhita, 2023 replaced the Indian Penal Code from 1 July 2024 and defamation now appears in section 356 of the BNS. The substance is materially the same as the old sections 499 and 500 of the IPC. Conduct that occurred before that date continues to be governed by the older provisions and their procedure.

Does online defamation carry the same punishment as print?

The mode of publication does not change the offence. A defamatory tweet, review, video or comment is still a publication under section 356 of the BNS. What the internet changes is the evidence and the reach, which can affect how a court assesses harm, the urgency of an injunction, and the seriousness with which the complaint is treated.

Can I be arrested for a defamatory online post?

Arrest is possible but far from automatic in defamation matters, and the offence is generally dealt with through a magistrate's complaint rather than a police investigation. Courts have repeatedly cautioned against using criminal defamation as a harassment tool. Whether bail questions even arise depends on how the complaint is registered and the stage it has reached.

What is the difference between civil and criminal defamation?

Criminal defamation is prosecuted by the State on a complaint by the aggrieved person and can lead to a fine or simple imprisonment, with proof required beyond reasonable doubt. Civil defamation is a suit by the aggrieved person seeking damages and sometimes an injunction, decided on the balance of probabilities. Many complainants pursue both tracks together.

What defences are available in an online defamation case?

The main defences are truth published for the public good, fair comment on a matter of public interest or public conduct, and statements made in good faith. A defendant can also argue that the imputation was never published to a third person, or that there was no intention to harm and no knowledge that harm would follow. Each turns on the specific words used.

Must a defamation complaint be filed by the aggrieved person?

Yes. The law has long required that a complaint for defamation be made by the person defamed, or in limited cases by someone authorised on that person's behalf. A stranger, or an unrelated organisation, generally cannot file the complaint. That requirement was in section 199 of the Code of Criminal Procedure and has been carried forward into the new procedure.

Should I sue the platform that hosted the post?

Usually not. Section 79 of the IT Act gives an intermediary a conditional safe harbour for third-party content, so the platform is generally not the defamer. It can lose that protection if it ignores a valid complaint or a court order. The practical step is to send a takedown notice to its grievance officer and keep proof of the complaint.

Information for general guidance only and not legal advice. Provisions cited follow the Information Technology Act 2000, the Bharatiya Nyaya Sanhita 2023 and the Bharatiya Nagarik Suraksha Sanhita 2023.

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