Copyright Act 1957 Section 51: When Copyright Is Infringed (2026)

Published on: October 13, 2026
Last updated: 13 July 2026

What Section 51 of the Copyright Act, 1957 does: it defines when copyright is infringed. It is the gateway section for every civil and criminal copyright case, covering direct copying, allowing a place to be used for infringement, and trade in infringing copies. Last verified October 2026.

Explainer · Copyright Law

Section 51 of the Copyright Act, 1957 is the gateway provision for copyright disputes. It tells you when copyright in a work is deemed to be infringed. Every civil suit for copyright and every criminal complaint under Section 63 rests on first showing infringement under Section 51. In short, copyright is infringed when a person, without a licence, does something that only the owner may do, or permits a place to be used for profit for an infringing communication, or deals in infringing copies in the course of trade. This explainer sets out what each limb covers, the defences, the leading case on online platforms, and the practical effect. Last verified October 2026.

The short answer
  • What it is: Section 51 defines when copyright in a work is infringed. It is the gateway for every copyright case.
  • Direct limb: Section 51(a)(i) covers doing, without a licence, an act that only the owner may do.
  • Place for profit: Section 51(a)(ii) covers permitting a place to be used for profit for an infringing communication, with a safe harbour for an unaware permitter.
  • Trade limb: Section 51(b) covers making, selling, distributing, exhibiting in trade or importing infringing copies.
  • Defences: Section 52 exceptions, such as fair dealing, can save an act that would otherwise infringe.

01What Section 51 says

Copyright gives the owner a bundle of exclusive rights, such as the right to reproduce the work, to publish it, to communicate it to the public and to make adaptations. Section 51 says copyright is infringed when someone invades those rights without permission. It is the first thing a court checks in any copyright claim.

Section 51 is the gateway

You cannot win a copyright suit, or run a criminal complaint under Section 63, without first fitting the facts into Section 51. If the act is not infringement under Section 51, there is nothing to remedy. That is why this section is the starting point for the whole dispute.

The criminal offence in Section 63 depends on infringement being made out under Section 51. For the criminal route, see criminal remedies under Section 63.

02The direct infringement limb

Section 51(a)(i) is the core. Copyright is infringed when a person, without a licence granted by the owner or the Registrar of Copyrights, or in breach of a licence condition, does anything that the exclusive right to do is conferred on the owner.

So copying a book, reproducing software, uploading a film, or making an adaptation without permission all fall here. Two points matter: the act must be one that only the owner may do, and it must be done without a licence or beyond the terms of one. A licensee who goes beyond the licence can also infringe.

03The place for profit limb

Section 51(a)(ii) reaches a different wrongdoer: the person who lets a place be used for infringement. Copyright is infringed when a person permits, for profit, any place to be used for the communication of the work to the public, where that communication is an infringement.

There is a built-in safe harbour. The permitter is not liable if he was not aware, and had no reasonable ground to believe, that the communication would be an infringement. So an innocent owner of premises is protected, but one who knows, or ought to know, that infringing content is being communicated for profit is not.

Who this catches

This limb can reach the owner of an auditorium used for an unlicensed public performance, or an online platform that profits from infringing uploads once it knows about them. The knowledge element is the battleground: the question is often what the permitter knew or should have known.

04Dealing in infringing copies

Section 51(b) targets trade in infringing copies. Copyright is infringed when a person does any of the following with copies that infringe copyright:

  • makes for sale or hire, or sells or lets for hire;
  • distributes, either for trade or to an extent that prejudices the owner;
  • exhibits in public by way of trade; or
  • imports infringing copies into India.

This is how the Act reaches sellers, distributors and importers of pirated goods, not just the person who made the first copy. An explanation treats a film that reproduces another work as an infringing copy.

05Defences and exceptions

Even where an act looks like infringement under Section 51, it may be saved by Section 52, which lists acts that are not infringement, such as fair dealing for private use, research, criticism, review and news reporting. A Section 52 defence is usually the first thing a defendant raises. For the full list, see Section 52 fair dealing and permitted acts.

Other common defences are that copyright does not subsist in the work, that the defendant is the real owner or a licensee, or that the works are not substantially similar. The owner must prove substantial copying, not just some resemblance.

06Online platforms and the MySpace case

The place for profit limb has been tested online. In Super Cassettes Industries Ltd. v. MySpace Inc., the Delhi High Court considered whether an internet platform could infringe under Section 51(a)(ii). The Court read the words any place widely enough to include web space, and held that providing a platform for profit could amount to infringement, particularly once the platform had knowledge of the infringing content.

This case shows how a provision written in 1957 adapts to the internet. The knowledge element from the safe harbour does a lot of work online, because platforms argue they did not know, while owners argue the platform had reasonable grounds to know.

07A practical note

If you own copyright, build your proof early: authorship, date of creation, first publication and, if you have it, a registration certificate. Registration is not compulsory for copyright to exist, but it is useful evidence. For infringement, keep dated evidence of the copying, such as the infringing copies, screenshots and purchase records.

If you are accused, check first whether a Section 52 exception applies, and whether copyright really subsists and the works are substantially similar. For tracking copyright disputes as they move through the courts, see tracking copyright infringement cases in India, and for where these cases are heard, see copyright litigation forums in India.

08Where Claw fits

Claw is an all-in-one legaltech platform for Indian advocates, law firms, and corporate legal teams, combining AI-based case search, an AI legal assistant (Legal GPT), case management, and compliance automation across all Indian courts and tribunals.

Whether an act infringes under Section 51 usually turns on how courts have treated similar facts, from substantial similarity to the knowledge element in the place for profit limb. Claw lets you search more than 30 crore judgments and orders, with Supreme Court rulings from 1950 and High Court rulings from 1990, to read how Section 51 and the Section 52 defences have been applied, including the MySpace line of cases, with results in under 5 seconds. You can also track a live copyright suit by party or advocate name across 9,102 courts, benches and forums. Claw does not use the documents you upload to train its AI models.

Create a free Claw account to research Section 51 rulings and follow a pending copyright dispute, and use case search across Indian courts to find decisions on infringement.

09Sources and further reading

This explainer is general information, not legal advice. Copyright disputes turn on the facts, so check the current text and take advice from counsel before you act.

10Frequently asked questions

When is copyright infringed under Section 51?

Copyright is infringed when a person, without a licence, does something that only the owner may do, or permits a place to be used for profit for an infringing communication to the public, or deals in infringing copies in trade by making, selling, distributing, exhibiting or importing them.

What is the place for profit limb of Section 51?

Section 51(a)(ii) makes it infringement to permit, for profit, any place to be used for communicating an infringing work to the public. The permitter is not liable if he was unaware, and had no reasonable ground to believe, that the communication would be an infringement.

Does Section 51 apply to online platforms?

Yes. In Super Cassettes Industries v. MySpace, the Delhi High Court read any place in Section 51(a)(ii) to include web space, and held that an internet platform run for profit could infringe, especially once it had knowledge of the infringing content.

What are the defences to a Section 51 claim?

The main defence is a Section 52 exception, such as fair dealing for private use, research, criticism, review or news reporting. Other defences are that copyright does not subsist, that the defendant owns or is licensed, or that the works are not substantially similar.

Do I need copyright registration to sue under Section 51?

No. Copyright exists without registration, so registration is not a precondition for infringement. A registration certificate is still useful evidence of ownership. You can check the register at the Copyright Office.

Can Claw help with Section 51 research?

Yes. Claw lets you search more than 30 crore judgments and orders, including how Section 51 and the Section 52 defences have been applied, with Supreme Court rulings from 1950 and High Court rulings from 1990, and track a pending copyright dispute across 9,102 courts, benches and forums, with results in under 5 seconds. It researches and tracks the matter but does not give legal advice.

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