Intellectual property litigation in India has undergone a transformation of considerable significance over the past decade and nowhere is this transformation more visible than in the conduct of patent suits. The enactment of the Commercial Courts Act, 2015, the establishment of specialised intellectual property divisions in the High Courts, the introduction of case management procedures borrowed from common law jurisdictions with more developed patent litigation cultures and a growing body of judicial decisions that engage with the technical and legal complexities of patent disputes with increasing sophistication all of these developments have reshaped the landscape within which patent suits are filed, contested and decided in India. Yet the framework that governs jurisdiction, procedure and the conduct of patent litigation remains a composite one, built from the Patents Act, 1970, the Code of Civil Procedure, 1908, the Commercial Courts Act, 2015 and the specific rules and practice directions of the courts before which patent suits are heard. Understanding this composite framework in its jurisdictional dimensions, its procedural architecture and its practical implications for litigants on both sides of a patent dispute is among the most practically important bodies of knowledge for anyone engaged with patent enforcement or defence in India.
Patent litigation in India presents a range of challenges that are distinctive to the Indian legal environment. The technical complexity of patent disputes which require courts to engage with detailed questions of chemistry, biology, electronics, software or mechanical engineering while simultaneously applying the legal standards of novelty, inventive step, infringement and validity demands judicial expertise that has historically been unevenly distributed across the Indian court system. The volume of pre-trial procedural steps, the scope for interlocutory applications that can occupy the parties and the court for months or years and the commercial pressure that flows from the grant or refusal of interim relief in markets where patent-protected products generate revenues of enormous scale all of these factors make patent litigation a high-stakes and strategically complex exercise. The Commercial Courts Act’s intervention into this landscape has addressed some of these challenges while creating new procedural demands that require careful navigation by practitioners and litigants alike.
Jurisdiction in Patent Suits – The Statutory Framework
The jurisdiction of courts to hear patent suits in India is governed primarily by Section 104 of the Patents Act, 1970, which provides that no suit for infringement of a patent shall be instituted in any court inferior to a District Court having jurisdiction to try the suit. Section 104 further provides that where the defendant in an infringement suit files a counter-claim for revocation of the patent, the suit along with the counter-claim shall be transferred to the High Court for decision. These provisions establish the basic jurisdictional architecture: the District Court is the minimum court before which a patent infringement suit may be filed, but where revocation is counter-claimed as is very frequently the case in practice the suit must be heard by the High Court.
The practical consequence of Section 104’s counter-claim provision is that the vast majority of contested patent suits in India are heard by the High Courts, since defendants who have substantive invalidity arguments and most defendants do will routinely file counter-claims for revocation, triggering the mandatory transfer to the High Court. This self-selecting mechanism has concentrated patent litigation before the High Courts, particularly before the Delhi High Court, which by virtue of its territorial jurisdiction over the Indian Patent Office and over many technology and pharmaceutical companies has become the pre-eminent forum for patent disputes in India.
The territorial jurisdiction of the court in a patent suit is determined by the ordinary principles of civil procedure specifically, by Section 20 of the Code of Civil Procedure, which provides that a suit may be instituted in any court within the local limits of whose jurisdiction the defendant resides, carries on business or personally works for gain or where the cause of action, wholly or in part, arises. In patent infringement cases, the cause of action arises where the infringing act the manufacture, sale, use or import of the infringing product occurs and the plaintiff may choose to sue in any court within the jurisdiction where any part of the cause of action has arisen. This flexibility in the choice of forum has significant strategic implications, since plaintiffs routinely select the forum most favourable to their interests typically a court with an established patent jurisprudence and an experienced patent bench.
The Commercial Courts Act, 2015 – Transformation of Patent Litigation
The Commercial Courts Act, 2015, which came into force in January 2016, is the most significant legislative development in Indian civil litigation in a generation and its impact on patent suits has been profound. The Act established Commercial Courts at the district level and Commercial Divisions and Commercial Appellate Divisions within the High Courts to hear commercial disputes of a specified value, with the objective of reducing delays, improving the quality of adjudication and making India a more attractive forum for the resolution of high-value commercial disputes.
Patent suits, being disputes arising out of intellectual property rights and having significant commercial dimensions, fall squarely within the definition of commercial disputes under Section 2(1)(c) of the Commercial Courts Act, which specifically includes disputes relating to intellectual property rights including patents. This inclusion means that patent suits meeting the specified value threshold originally rupees one crore, reduced to rupees three lakhs by the Commercial Courts (Amendment) Act, 2018, for suits at the district level must be filed before the Commercial Court or Commercial Division rather than before the ordinary civil court.
The procedural regime introduced by the Commercial Courts Act represents a fundamental departure from the ordinary Code of Civil Procedure procedure that previously governed patent suits. The Act introduces a series of mandatory procedural innovations a statement of truth verifying pleadings, a case management hearing, strict timelines for filing of written statements, an early first hearing at which directions are given for the conduct of the case and a mandatory pre-institution mediation process that are designed to streamline litigation and reduce the delays that had made Indian patent litigation among the most protracted of any major patent jurisdiction.
The Statement of Truth and Enhanced Pleading Requirements
The Commercial Courts Act introduces a requirement that all pleadings plaints, written statements and other procedural documents be verified by a statement of truth. Order VI Rule 15A of the Code of Civil Procedure, as amended by the Commercial Courts Act, requires that every pleading in a commercial suit be accompanied by a statement that the party verifying the pleading believes the facts stated in it to be true and accurate and that the party is not suppressing any material facts. The statement of truth is signed by the party or by its authorised representative with knowledge of the facts.
The statement of truth is significant in patent litigation because it imposes a duty of candour on parties that is enforceable through the court’s contempt jurisdiction. A party that files a pleading containing false or misleading statements and verifies that pleading with a statement of truth, exposes itself to contempt of court proceedings a consequence that goes significantly beyond the ordinary costs orders that previously applied to pleadings that turned out to be inaccurate. This enhanced accountability for the accuracy of pleadings has encouraged more careful and precise drafting of plaints and written statements in patent suits, though the full disciplinary impact of the statement of truth requirement is still developing through practice.
In patent suits, the enhanced pleading requirements introduced by the Commercial Courts Act and the associated amendments to Order VII and Order VIII of the CPC require the plaintiff to set out its infringement case with considerably more particularity than was previously expected. The plaint must identify the specific claims of the patent alleged to be infringed, describe the defendant’s product or process with sufficient particularity to enable the defendant to understand the case against it and set out the basis on which the plaintiff contends that the defendant’s activities fall within the scope of the identified claims. Vague and general allegations of infringement which were not uncommon in patent plaints filed under the pre-Commercial Courts Act regime are no longer adequate.
The Written Statement and Counter-Claim – Timelines and Consequences
Order VIII Rule 1 of the Code of Civil Procedure, as amended by the Commercial Courts Act, requires the defendant in a commercial suit to file its written statement within thirty days of the service of the summons. The court may, for reasons to be recorded in writing, extend this period to a maximum of one hundred and twenty days from the date of service of summons, but no written statement shall be taken on record after the expiry of one hundred and twenty days. This provision the most significant procedural departure from the pre-Act regime is mandatory and admits no further extension and the courts have strictly enforced it, refusing to take on record written statements filed beyond the one hundred and twenty day limit.
The mandatory timeline for filing the written statement has significant implications for patent litigation strategy. Defendants who are faced with an infringement suit must, within a short period of receiving the summons, conduct a thorough prior art search, analyse the validity of the patent’s claims, identify the specific invalidity grounds they wish to plead and prepare a detailed written statement that addresses both the infringement allegations and the invalidity defences. Where the defendant also wishes to file a counter-claim for revocation under Section 64 of the Patents Act which, as noted, triggers the transfer of the suit to the High Court the counter-claim must be filed with or shortly after the written statement and the same strict timeline applies.
The one hundred and twenty day rule has significantly compressed the time available for defendants to develop their invalidity case before filing their written statement and it has created a premium on the early engagement of experienced patent counsel who can conduct a rapid prior art search and develop a preliminary invalidity strategy within the available timeframe. For defendants who identify the relevant prior art only after filing their initial written statement, the ability to supplement or amend the written statement is limited by the court’s discretion and by the general principle that amendments that introduce new grounds of defence or new prior art at a late stage of the proceedings may be refused if they would cause prejudice to the plaintiff.
The Case Management Hearing
One of the most important innovations of the Commercial Courts Act in the context of patent litigation is the mandatory case management hearing under Order XV-A of the Code of Civil Procedure. The case management hearing is a structured conference between the court and the parties, held at an early stage of the proceedings, at which the court identifies the issues in dispute, determines what evidence will be required, fixes timelines for the completion of the pleadings and evidence stages and gives directions for the efficient conduct of the case to trial. In patent suits, the case management hearing is an opportunity for the court to identify the technical issues the claim construction questions, the validity challenges and the infringement analysis that will need to be resolved at trial and to give directions for the preparation and presentation of expert evidence on those issues.
The case management framework requires the parties to cooperate in the identification of common ground and the narrowing of issues parties must file a case management chart identifying the agreed facts, the disputed facts and the legal issues to be determined and the court will use this chart as the basis for setting the directions for the conduct of the case. The requirement to identify agreed facts and narrow issues is of particular value in patent suits, where the technical and legal issues can be numerous and complex and where the identification of common ground at an early stage can significantly reduce the scope of the evidence and argument required at trial.
The Role of Expert Evidence in Patent Suits
Expert evidence occupies a position of central importance in patent litigation that is unlike any other category of civil suit. The technical questions at the heart of a patent suit whether the defendant’s product embodies the elements of the patent claims, whether the claimed invention would have been obvious to a person skilled in the art at the priority date, whether the specification is sufficient to enable reproduction of the invention can only be adequately addressed through expert evidence from technically qualified witnesses who can explain the relevant science, engineering or chemistry to the court and apply it to the specific facts of the case.
Indian courts have recognised the importance of expert evidence in patent suits and have, in the post-Commercial Courts Act environment, given greater attention to the framework within which expert evidence is prepared, filed and tested. Order XXVI of the Code of Civil Procedure governs the appointment of commissioners to conduct local investigations and to report to the court on technical questions and in some patent cases the courts have appointed court-appointed technical experts to assist them in understanding the technical issues rather than relying exclusively on the partisan experts appointed by each party.
The Delhi High Court’s Intellectual Property Division, established in 2021, has developed specific practices for the management of expert evidence in patent suits, including requirements for the filing of expert reports in advance of trial, the identification of the issues on which expert evidence is to be filed and the cross-examination of experts at trial or through written questions. These practices, which draw on the procedural framework for expert evidence developed in other common law jurisdictions, have improved the quality and efficiency of technical adjudication in patent suits before the Delhi High Court, though there remains room for further development of a systematic framework for expert evidence in Indian patent litigation.
The Delhi High Court Intellectual Property Division
The establishment of the Intellectual Property Division of the Delhi High Court by administrative order in 2021 represents the most significant institutional development in Indian patent litigation in recent years. The IP Division was created to consolidate all intellectual property matters including patent suits, trademark disputes, copyright cases and related matters before a dedicated bench of judges with expertise in IP law and practice. The Division operates under the Delhi High Court Intellectual Property Rights Division Rules, 2022, which provide a specific procedural framework for IP disputes that supplements the Commercial Courts Act regime.
The IP Division has brought a level of specialisation and procedural consistency to patent litigation before the Delhi High Court that was previously lacking. Judges in the IP Division develop familiarity with the technical and legal issues that recur across patent disputes in specific technology sectors pharmaceutical chemistry, telecommunications technology, software, agricultural biotechnology and can apply that familiarity to individual cases in a manner that promotes more efficient and more accurate adjudication. The Division has also developed a more structured approach to claim construction the interpretation of patent claims than was previously applied, drawing on comparative jurisprudence from the UK, US and European patent courts in developing a coherent Indian approach to this foundational question.
Pre-Institution Mediation and Settlement
The Commercial Courts Act, as amended in 2018, introduced a mandatory pre-institution mediation requirement for commercial disputes that do not require urgent interim relief. Under Section 12A of the Act, a party intending to file a commercial suit must first exhaust the remedy of pre-institution mediation before a legal services authority before filing the suit in court, unless the suit contemplates urgent interim relief. In patent suits where the plaintiff intends to seek an interlocutory injunction which is the majority of contested patent suits the pre-institution mediation requirement is typically bypassed by the urgent interim relief exception. However, in patent suits where the primary relief sought is damages or an account of profits rather than an injunction, the pre-institution mediation requirement applies and must be complied with before the suit can be filed.
The pre-institution mediation requirement reflects the legislature’s recognition that many commercial disputes including patent disputes can be resolved through negotiated settlement at an early stage, before the parties have invested heavily in litigation preparation. In patent disputes, settlement frequently takes the form of a licence agreement the alleged infringer agrees to take a licence from the patent holder on terms that both parties accept as reasonable and the suit is withdrawn. The pre-institution mediation process, conducted before legal services authorities with trained mediators, provides a structured opportunity for the parties to explore settlement before commencing adversarial proceedings.
Interlocutory Applications and the Stay of Proceedings
The interlocutory phase of a patent suit from the filing of the plaint to the completion of pleadings and the commencement of the evidence stage is frequently occupied by a range of applications that can significantly affect the conduct and outcome of the proceedings. The most important of these is the application for an interlocutory injunction, discussed in the context of remedies. Beyond the injunction application, the interlocutory phase may involve applications for discovery and inspection of documents, applications for the appointment of scientific advisers, applications for the admission of additional documents and applications to strike out pleadings or to limit the scope of the invalidity challenge.
The Commercial Courts Act’s provisions for discovery and inspection Order XI as amended by the Act introduce a more structured and potentially more demanding discovery regime than was previously applicable in patent suits. Parties must now file a list of all relevant documents in their possession, custody or power at the time of filing their pleadings and must make those documents available for inspection. This early disclosure of documents including internal communications, technical reports, regulatory submissions and commercial correspondence can be highly consequential in patent litigation, since the documents disclosed may reveal information about the infringer’s state of knowledge, about the patent holder’s own understanding of the patent’s scope and about the commercial context of the dispute.
Appeals in Patent Matters – The Appellate Hierarchy
The appellate hierarchy in patent matters is determined by the court from which the appeal is taken. Orders of the Commercial Division of the High Court are appealable to the Commercial Appellate Division of the same High Court under Section 13 of the Commercial Courts Act. Decisions of the Commercial Appellate Division and final decisions of single judges of the High Court in patent suits are appealable to the Supreme Court under Article 136 of the Constitution, which confers a discretionary jurisdiction on the Supreme Court to grant special leave to appeal from any judgment, decree or order of any court or tribunal in India.
The Supreme Court’s jurisdiction over patent matters has produced a body of significant jurisprudence from the Novartis judgment on Section 3(d) to the Bajaj v. TVS decision on interim injunctions that has shaped Indian patent law in fundamental ways. The Supreme Court’s engagement with patent questions has, however, been episodic rather than systematic and the development of a coherent and comprehensive body of patent jurisprudence has been largely the work of the High Courts particularly the Delhi High Court operating under the general supervision of the Supreme Court through the special leave jurisdiction.
Venue and Forum Selection Strategy
The selection of the appropriate forum for a patent suit is one of the most important strategic decisions in patent litigation and it is a decision that requires careful consideration of the territorial jurisdiction rules, the relative expertise and efficiency of the available courts, the location of the parties and witnesses and the commercial dynamics of the dispute. For most significant patent disputes in India, the Delhi High Court is the preferred forum for plaintiffs it has the most developed patent jurisprudence, the most experienced patent bench, the most structured procedural framework for IP disputes and the most efficient case management system. The Bombay High Court is the preferred forum for disputes with a strong connection to Maharashtra or to the pharmaceutical industry centred in Mumbai.
Where the defendant does not have a presence in Delhi or Mumbai, the plaintiff may be obliged to bring proceedings in a different High Court or, for smaller value disputes, in a District Court or Commercial Court in another jurisdiction. The development of the Commercial Courts framework across India has improved the quality of patent adjudication in courts outside Delhi and Mumbai, but significant disparities in judicial expertise and procedural efficiency remain and the choice of forum continues to have a material impact on the conduct and outcome of patent disputes.
Conclusion
The framework governing patent suits in India built from the jurisdictional provisions of Section 104 of the Patents Act, the procedural regime of the Code of Civil Procedure, the transformative interventions of the Commercial Courts Act and the institutional developments of the Delhi High Court’s Intellectual Property Division is a composite and evolving system that has undergone more significant change in the past decade than in the preceding five. The Commercial Courts Act’s mandatory timelines, enhanced pleading standards, case management procedures and discovery requirements have addressed the most serious deficiencies of the pre-Act regime the procedural delays, the lack of front-loading of evidence and the absence of structured judicial management of complex technical disputes and have produced a patent litigation environment that is more predictable, more efficient and more capable of delivering substantive justice in technically complex cases.
The challenges that remain are not primarily legislative. They are institutional the development of a sufficiently large and experienced cadre of patent judges across the country, the establishment of consistent practices for the management of expert evidence, the development of a coherent Indian approach to claim construction that can be applied predictably across different courts and different technology sectors and the integration of India’s patent litigation system into the global framework of patent enforcement in a manner that serves the interests of both domestic and international patent holders. These challenges are being addressed, incrementally but meaningfully, through the work of the IP Division, through the continuing development of Indian patent jurisprudence and through the engagement of the Indian courts with the comparative experience of patent systems in other major jurisdictions. The framework that results when it reaches the maturity that the significance of patent rights in the Indian economy demands will be one of the most consequential institutional developments in Indian intellectual property law.
References
- The Patents Act, 1970 https://ipindia.gov.in
- The Commercial Courts Act, 2015 https://legislative.gov.in
- The Code of Civil Procedure, 1908 https://legislative.gov.in
- Wander Ltd. v. Antox India P. Ltd., (1990) Supp SCC 727 https://main.sci.gov.in
- Bajaj Auto Ltd. v. TVS Motor Company Ltd., (2009) 9 SCC 797 https://main.sci.gov.in
- F. Hoffmann-La Roche Ltd. v. Cipla Ltd., (2012) 49 PTC 356 (Del) https://delhihighcourt.nic.in
- Novartis AG v. Union of India, (2013) 6 SCC 1 https://main.sci.gov.in
- Delhi High Court Intellectual Property Rights Division Rules, 2022 https://delhihighcourt.nic.in
- Manual of Patent Office Practice and Procedure https://ipindia.gov.in
- TRIPS Agreement, WTO https://www.wto.org/english/docs_e/legal_e/27-trips.pdf
- National IPR Policy, 2016, DPIIT https://dpiit.gov.in
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