Author: Sara Singh, Amity University , Lucknow

Comparative advertising — a marketing technique where a business explicitly references a competitor's trademark to highlight the superiority of its own goods or services — occupies a precarious legal space. While it serves the twin purposes of informing consumers and stimulating market competition, it simultaneously risks infringing the intellectual property rights of the compared brand. This research paper examines trademark disputes that emerge from comparative advertising practices, with particular focus on the Indian legal framework and relevant global precedents. The study investigates how the Trademarks Act, 1999, and the Consumer Protection Act, 2019, regulate the boundaries of permissible comparative advertising, and how courts have interpreted concepts such as honest practices, disparagement, and dilution in adjudicating such disputes.

Drawing on case law from Indian courts, decisions by the Advertising Standards Council of India (ASCI), and comparative analysis with United States and European Union jurisprudence, the paper identifies recurring legal tensions between free commercial speech and brand protection. Key findings reveal that Indian courts have struggled to articulate a consistent standard for what constitutes permissible comparative advertising, particularly in the fast-moving consumer goods and telecommunications sectors. The research further highlights a significant gap in statutory guidance — the Trademarks Act, 1999, provides only a partial defense under Section 30(1), leaving courts to fill the void through judicial interpretation. The paper concludes with recommendations for legislative reform and clearer ASCI guidelines to provide legal certainty for advertisers and trademark owners alike.

Keywords

Comparative advertising, trademark infringement, disparagement, honest practices, Section 30(1) of the Trademarks Act 1999, Section 29(8), misleading advertisement, Consumer Protection Act 2019, ASCI Code, CCPA Guidelines, puffery, trademark dilution, passing off, EU Directive, Lanham Act, self-regulation, judicial inconsistency.

Advertising has long been central to commercial enterprise, but the moment one competitor invokes another's brand name in its promotional material, a complex legal drama begins. Comparative advertising — broadly defined as any advertisement that identifies a rival's product, either by name or by recognizable implication, for the purpose of comparison — is at once a powerful competitive tool and a fertile source of litigation. Historically, English common law took a dim view of any advertisement that mentioned a competitor, treating such conduct as per se defamatory or passing off. By the mid-twentieth century, however, courts on both sides of the Atlantic began to recognize that consumers benefit when advertisers are permitted to make truthful, substantiated comparisons.

In India, the legal architecture governing comparative advertising is distributed across multiple statutes and self-regulatory frameworks. The Trademarks Act, 1999 (hereinafter 'the Act') is the primary instrument. Section 29 of the Act enumerates grounds of trademark infringement, while Section 30(1) carves out a defense for use of a mark in accordance with 'honest practices in industrial or commercial matters,' provided such use does not take 'unfair advantage of or [is] detrimental to the distinctive character or repute of the trademark.' The Consumer Protection Act, 2019 further penalizes 'misleading advertisements,' defined in Section 2(28) to include any advertisement that gives a false description of a product or service, or makes a false guarantee. Beyond statute, the ASCI Code — a voluntary self-regulatory charter — lays down Chapter IV guidelines specifically targeting comparative claims, requiring that comparisons be factually accurate and verifiable.

Key terms relevant to this discourse include: (i) trademark infringement — the unauthorized use of a registered mark in a manner likely to cause confusion; (ii) disparagement — a false or misleading statement that discredits a competitor's goods; (iii) dilution — the whittling away of a mark's distinctiveness or garnishment of its reputation; and (iv) honest concurrent use — the permitted use of another's mark in a context that does not mislead consumers about commercial origin.

Existing scholarship on comparative advertising in India is limited. While works such as Narayanan's Trademarks and Passing Off (7th ed.) provide doctrinal foundations, and Basheer and Koch Pillai have analysed Section 30(1) in academic articles, no comprehensive study maps the full landscape of Indian case law alongside consumer protection dimensions. This research gap — particularly the absence of analysis integrating the 2019 Consumer Protection Act with trademark law — forms the primary motivation for this paper. The objective is to evaluate the current legal framework, identify its shortcomings, and propose reforms that balance advertiser freedom with trademark proprietor rights. The scope of the study is confined to Indian law, with comparative references to the US Lanham Act and EU Directive 2006/114/EC to illuminate potential reform pathways. Empirical survey data and econometric analysis of advertising spend fall outside the present enquiry.

The legal system that controls comparative advertising India has been studied through court rulings, official rules, industry guidelines, and academic writings. However, there is no single resource that brings all these areas together in a complete way. This review looks at the current situation and points out the missing parts that this research aims to fill.

Statutory Framework

The trademark's unique identity or damage its reputation. Some legal experts, like Basheer and Koch Pillai (2005), have pointed out that the phrase "honest practices" is not clearly defined, making it a subjective standard that gives courts a lot of freedom, which can lead to inconsistent rulings. Narayanan's book, "Trademarks and Passing Off" (7th edition, 2015), which is a leading reference on Indian trademark law, explains Section 30(1) in detail but does not explore how courts have used this section in cases related to comparative advertising. This creates a legal gap because the law does not clearly allow or restrict comparative advertising, causing confusion for legal professionals The Consumer Protection Act, 2019 adds another layer by defining "misleading advertisements" broadly, which includes false claims and unproven promises. It also holds endorsers personally responsible; a feature not found in the 1986 version of the act. However, there is not much academic discussion on how the 2019 Act interacts with trademark law, which is a major gap in current legal writing.

Judicial Decisions

The key judicial decision in this area is Reckitt & Colman of India Ltd. v. M.P. Ramchandran & Amr., (1999) 1 CHN 390 (Cal.), where the Calcutta High Court made a clear distinction between permissible puffery, which includes subjective claims about superiority, and actionable disparagement, which refers to false factual statements about a competitor's products. Although this ruling is important, it was made before the Trademarks Act, 1999, and the Consumer Protection Act, 2019, which means it is not fully applicable under today's legal framework. Later court decisions have not consistently appliedthe difference between puffery and disparagement. For example, in Hindustan Unilever Ltd. v. Procter & Gamble Home Products Ltd., (2010) 42 PTC 96 (Del.), the Delhi High Court issued an interim ban on an advertisement, calling it disparaging. The court used standards from EU law and ASCI guidelines, even though there was no specific legal definition of "honest practices" in Indian law. This shows how inconsistent and unclear the legalapproach is in this area. So far, no Indian appellate court has provided a clear, structured method to determine what comparative advertising is allowed— a major issue that leaves lower courts and legal professionals without clear direction.

Regulatory and Self-Regulatory Sources

The Advertising Standards Council of India's Chapter IV guidelines state that any comparative claims in advertisements must be factually correct, supported by objective evidence, not selective, and not offensive. These guidelines are further supported by the Central Consumer Protection Authority's 2022 Guidelines on Misleading Advertisements, which add more structure to the existing framework and have a level of authority similar to government rules. However, as noted in a report by WIPO's Standing Committee (SCT/30/6, 2013), self-regulatory organizations around the world often face challenges in enforcing their rules. This is because their decisions do not have legal power, and following their guidelines is not mandatory. Asci’s own records, which include over 4,700 complaints handled between 2018 and 2023, show that relying only on voluntary compliance is not enough to control how businesses operate in the market.

Comparative Scholarship and Remaining Gaps

Mitter (2016) in the National Law School of India Review gives a helpful summary of comparative advertising under Indian trademark law, but it doesn't look at how it affects consumer protection. The FTC's supportive stance on truthful comparative ads and the EU Directive 2006/114/EC's clear rules on what's allowed offer good examples of how things could be improved, but these ideas haven't been widely studied in Indian legal writing.

The main issue this paper deals with is the lack of a complete analysis that brings together trademark law, the 2019 Consumer Protection Act, inconsistent court decisions, and the limits of self-regulation — along with specific suggestions for reform based on international examples.

1. Doctrine Research

The main approach used in this study is doctrinal legal research, which involves a detailed and organized examination of primary and secondary Legals sources.

Primary sources considered include:

The Trademarks Act, 1999, specifically Sections 29 and 30(1), which explain what constitutes infringement and outline the "honest practices" defence.

The Consumer Protection Act, 2019, particularly Sections 2(28) and 21, which define misleading advertisements and set out the personal liability of endorsers.

The ASCI Code, Chapter IV, which deals with comparative advertising claims.

The CCPA Guidelines, 2022, which provide guidance on preventing misleading advertisements.

Judicial decisions such as Reckitt & Colman of India Ltd. v. M.P. Ramchandran & Amr.

(1999) and Hindustan Unilever Ltd. v. Procter & Gamble Home Products Ltd. (2010).

These sources are examined to understand how judicial thinking has developed over time, spot unclear parts in the law — especially the undefined term “honest practices" in Section 30(1) and check if current legal principles offer clear and reliable advice to advertisers and trademark owners. The method of mapping case law is used to show where there are differences in rulings by High Courts and to highlight that there is no clear test at the appellate level for what is allowed in comparative advertising.

Secondary sources, such as Narayanan's book *Trademarks and Passing Off* (7th edition, 2015), the journal article by Basheer and Koch Pillai (2005), Mitter's work in the *National Law School of India Review* (2016), and the WIPO Standing Committee Report (SCT/30/6, 2013), are carefully reviewed to place our legal findings in the context of ongoing academic discussions and to find areas where scholarly work is lacking, especially the lack of a combined analysis of trademark law with the 2019 Consumer Protection Act.

2. Comparative Research

To support the study of legal principles and find practical ways to update laws, the research compares the Indian legal system with two foreign legal frameworks.

The first is the United States Lanham Act (15 U.S.C. § 43(a)), as explained by the FTC's Policy on Comparative Advertising (1979), which actively supports honest comparative advertising.

The second is the EU Comparative Advertising Directive 2006/114/EC, which uses a clear, multi-step test to determine if comparisons are fair, not misleading, objective, and not disrespectful.

This research uses the comparative method not just to describe differences, but as a tool to find solutions.

By looking at how these well-established legal systems have handled the balance between allowing advertisers freedom and protecting trademarks, the study offers clear suggestions for changing Indian laws. This approach is especially important because Indian courts have already started using EU court decisions and FTC reasoning in a piecemeal way. Therefore, a thorough and organized comparison is both timely and essential.

The first step in understanding comparative advertising under Indian law is the Trademarks Act, 1999. Section 29 lists all the reasons why someone might be accused of trademark infringement, including using a registered trademark in a way that causes confusion, takes unfair advantage, or harms the mark's unique identity or reputation. Section 30(1), however, provides a defense for using a mark as long as it follows "honest practices in industrial or commercial matters," as long as it doesn't unfairly benefit from the mark or harm its reputation.

The issue with this legal system is clear: the Act does not explicitly allow comparative advertising, nor does it explain what "honest practices" really means.

This defence is both available and undefined at the same time — it's like being given an invitation without any instructions. Basheer and Koch Pillai (2005) correctly point out that this is a subjective standard that gives too much power to judges, leading to inconsistent decisions in different courts. This is in sharp contrast to more developed legal systems. The EU Directive 2006/114/EC outlines six clear, objective conditions for acceptable comparativeadvertising, such as ensuring comparisons are not misleading, can be verified, and do not insult the mark. This gives advertisers a clear checklist to evaluate their campaigns before they go live. The Indian Act, on the other hand, offers no such guidance.

This lack of clear rules has real-world effects.

Advertisers in India cannot be sure in advance whether their comparative ad campaigns will lead to legal problems. Matters are further complicated by Section 29(8), which penalizes the use of a mark in advertising that is "contrary to honest practices" or "detrimental to the mark's repute" — again, without any clear definition. As a result, the very law meant to protect legitimate comparative advertising (Section 30(1)) and the law meant to stop harmful advertising (Section 29(8)) both rely on the same undefined term. This creates a confusing loop that courts have found difficult to interpret clearly.

The key legal decision in this area is Reckitt & Colman of India Ltd. v. M.P. Ramchandran & Amr., (1999) 1 CHN 390 (Cal.), where the Calcutta High Court made a distinction between permissible puffery and actionable disparagement. Permissible puffery refers to subjective claims of superioritythat no reasonable consumer would take as factual statements. Actionabledisparagement, on the other hand, involves false factual claims that harm a competitor's reputation. The court stated that traders can lawfully compare their products with those of competitors and even claim superiority, but they cannot make false statements that damage a competitor's goods. This distinction is logically sound and aligns well with international standards. However, the decision was made before the Trademarks Act, 1999 came into effect, and thus it does not have a clear basis in the current legal framework, especially the "honest practices" standard outlined in Section 30(1).

The limitations of the Reckitt & Colman framework became clear in Hindustan Unilever Ltd. v. Procter & Gamble Home Products Ltd., (2010) 42 PTC 96 (Del.), which is one of the most important cases related to comparative advertising in India.

In this case, the Delhi High Court issued an interim injunction against a TV commercial for Tide Naturals, which was alleged to misrepresent Rin detergent as inferior through a misleading demonstration. The court ruled that although comparative advertising isn't automatically illegal, an advertisement that unfairly harms a competitor through misleading means can be considered an infringement under Section 29(8). Notably, the court used standards from EU law and ASCI guidelines to determine what constitutes a breach of "honest practices." However, these external standards do not have legal force in India. While this judicial approach may be pragmatic, it highlights the main issue: courts are dealing with a statutory standard that Parliament hasn't clearly defined, and they are using external norms on a case-by-case basis, which is ad hoc and unpredictable.

This has led to a body of legal decisions that are hard to reconcile with each other.

In some cases, courts have focused on whether the comparative claim is false as the key factor, while in others, they have considered the way the advertisement is presented or the emotional tone used. This inconsistency means that the boundary between allowed and illegal comparative advertising shifts depending on the judges involved. As a result, legaladvice for advertisers has become more about managing risk than following clear rules. No Indian appellate court has yet established a complete, organized test — similar to the EU's multi-criteria approach that would offer consistent guidance across different courts. This lack of a unified framework remains the most significant issue in the current legal environment.

The Consumer Protection Act, 2019, introduces a major and often overlooked legal risk in comparative advertising.

Section 2(28) defines a "misleading advertisement" widely, covering any communicationthat provides a false description, makes a false promise, or is likely to mislead a consumer.This broad definition is important because it includes not just clearly false claims, but also claims that could possibly mislead — a standard that brings a lot of subjectivity into what should be a consumer protection measure.

More importantly, Section 21 of the 2019 Act makes endorsers and manufacturerspersonally responsible for misleading ads — a feature that wasn't in the Consumer Protection Act, 1986.

In the case of comparative advertising, this means brands that exaggerate their product's benefits face two types of legal issues. A detergent brand that says "3x more stainremoval" based on an internal, non-standard test now not only risks trademark lawsuitsfrom the competitor but may also be investigated by the Central Consumer Protection Authority (CCPA), with the brand’s ambassadors and top executives being held personallyaccountable.

This dual risk serves as a strong warning against making false comparative claims, which is what the law is meant to do.

However, it also has the unintended effect of stopping honest, evidence-backedcomparative advertising. A brand that truly has better lab results might avoid sharing them for fear that a competitor could question the testing method before the CCPA, leading to legal action even if the claim is legitimate. The 2019 Act, therefore, accidentally makes it more expensive for companies to truthfully promote their competitive advantages — a result that goes against both competition policy and the well-being of consumers. This interaction between the Consumer Protection Act and the Trademarks Act has been largely ignored in existing studies, which is exactly what this research aims to address.

The ASCI Code, Chapter IV, states that comparative advertisements must be factually correct, supported by evidence, use a fair range of comparisonpoints, and not insult the competitor.

These rules make sense and align with global standards. The CCPA's 2022 Guidelines on Misleading Advertisements offer extra guidance, adding a structured process to ASCI’s rules.

However, the system lacks strong enforcement.

ASCI decisions are not legally binding; companies choose to follow them on their own. The only way ASCI can act is by suggesting that an ad be takedown or changed. Between 2018 and 2023, over 4,700 complaints were filed about misleading ads, many involving comparisons in fast-movingconsumer goods and telecom. The fact that these complaints continue, even with ASCI taking action, shows that self-regulation alone can’t stop those who are willing to break the rules if they think the benefits of their ads are worth the risk of being criticized.

The WIPO Standing Committee Report (SCT/30/6, 2013) also points out the same problem in international settings, noting that self-regulatory groupsaround the world face the same weakness: without legal authority, they can encourage good actors but can't stop bad ones.

So, ASCI's challenges aren't because of anything unique to India; they are just part of how self-regulation works when there's no law to back it up.

The weaknesses in the Indian framework become more apparent when compared with the approaches used in the United States and the European Union.

In the US, Section 43(a) of the Lanham Act allows comparative advertising, but it's not allowed if it includes false or misleading facts. The Federal Trade Commission's 1979 Policy Statement even encourages truthful comparative advertising because it helps consumers and promotes competition. This US approach sets a clear standard: truth is not just a legaldefense but also a valuable protection. This reduces legal uncertainty by focusing on whether a claim is false, instead of whether the advertiser's actions were "honest."

The EU's Comparative Advertising Directive 2006/114/EC is more structured.

It allows comparative advertising only if it meets several conditions: the comparison must not be misleading, it must compare products that serve the same need or purpose, it must objectively compare one or more important and verifiable features, it must not confuse brands, and it must not insult or damage the competitor. This system is clear and predictable. Advertisers can check their campaigns against each condition in order and spot possible legal issues before they are published.

India's stance is different from both models.

It doesn't have the FTC's support for truthful comparisons or the EU's structured rules for allowing comparisons. Indian courts have started to bring in EU standards on a case-by-case basis, as seen in the case of Hindustan Unilever v. Procter & Gamble, but without the backing of a law that makes those standards consistent and clear. The reform message is clear: India could benefit from a law similar to the EU's multi-criteria framework. This lawwould explicitly allow truthful, supported, non-selective, and non-derogatory comparative advertising, along with a fast-track process for resolving disputes. This would reduce the fear of legal consequences, give judges clear guidelines, and align Indian law with international standards without hurting the trademark rights of brand owners.

Bringing together the previous analysis, three structural issues define the current Indian system.

First, the Trademarks Act, 1999 includes a defense for comparative advertising that is too unclear to be useful, making it hard to know what is allowed. This forces courts to make decisions based on their own judgment, which can be inconsistent. Second, the Consumer Protection Act, 2019, is helpful for protecting consumers, but it creates a situation where legitimate comparative advertisers face extra legal risks without any real advantage for consumers who would benefit from truthful comparisons. Third, the ASCI self-regulatory system is well-designed in terms of its rules, but it lacks the tools needed to enforce those rules and hold advertisers accountable. As a result, the line between acceptablecomparison and harmful disparagement is not set by clear laws, but by court cases a system that benefits lawyers more than it help the market.

The analysis in this paper leads to one main conclusion: India's legal system for regulatingcomparative advertising is broken, resulting in outcomes that are hard for advertisers to predict and not consistently good for trademark owners or consumers. This sectionexplains these findings in relation to the research question, looks at the real-world effects, and offers clear suggestions for improvement.

Strengths of the Current Framework

It would be wrong to say the existing system has no value at all.

The Trademarks Act, 1999, specifically in Section 30(1), recognizes that comparativeadvertising has a place in business — a big change from past legal rules that were against mentioning competitors. The legal distinction between puffery and disparagement from Reckitt & Colman (1999) gives a clear starting point, even if it hasn’t always been applied properly. The Consumer Protection Act, 2019, brings new focus to advertising from the consumer’s point of view and adds personal accountability with Section 21. ASCI’s Chapter IV guidelines, even though they aren’t enforceable, provide a strong idea of what responsible comparative advertising should be like. These are important parts of the system; they are the building blocks for creating a better framework.

Weaknesses and Policy Implications

However, the problems are deeper and more serious.

The undefined “honest practices” standard in Section 30(1) creates a legal gap that courtshave filled in different ways, leading to a body of law that doesn’t reliably tell advertisers what they can and can’t do. This isn’t just a technical issue — it has real policy effects. When the line between acceptable comparison and harmful disparagement is decided through court cases instead of clear rules, only big companies with lots of legal resources can confidently operate in this area. Smaller businesses and new entrants, who could benefitmost from using comparative advertising to challenge bigger brands, are often scared off. This makes the market less competitive in a way that goes against both consumer interests and fair competition goals.

The situation is made worse by the way the Trademarks Act and the Consumer Protection Act, 2019, work together.

Honest advertisers with actually better products can still face legal actions under the Consumer Protection Act, even if their claims are supported by evidence, simply because the broad “likely to mislead” standard in Section 2(28) makes them an easy target. This discourages truthful advertising, which is an unintended but serious problem that policymakers need to fix.

Three changes are suggested, first, Parliament should update the Trademarks Act, 1999 to include a rule that clearly allowscomparative advertising as long as it is truthful, backed by objective evidence, not selective, and does not insult anyone. This should follow the structured approach used in the EU Directive 2006/114/EC, which uses specific criteria to evaluate such claims. This change would replace the vague "honest practices" rule with clear, easy-to-checkstandards that courts can apply. Second, the Consumer Protection Act, 2019 should be changed to protect advertisers who make comparisons based on independent, standardised testing. This would prevent legal action from the Consumer Complaints Panel if the evidence supporting the claims is strong and reliable. Third, the guidelines from the Advertising Standards Council of India (ASCI) should be given legal authority, making it mandatory for broadcasters and online platforms to follow them. Decisions made by ASCI should be treated like official regulatory rulings and can be challenged in court. These three changes together would create a clear, fair system that supports both trademark ownersand consumers.

This research was initiated by a straightforward observation: comparative advertising is ubiquitous in Indian commercial life, yet the legal rules governing its permissibility remain fragmented, inconsistently applied, and poorly understood by practitioners and advertisers

like. The proliferation of high-profile injunction battles — between detergent giants, telecom operators, and automobile manufacturers — demonstrates that the stakes are substantial. Consumers, who are the intended beneficiaries of truthful comparative claims, are often caught in the crossfire of litigation that delays the dissemination of useful product information.

The paper has established three principal findings. First, the Trademarks Act, 1999, through Section 30(1), provides a defense for comparative advertising but does so in language so general as to offer little practical guidance. Courts have consequently developed an inconsistent jurisprudence that turns heavily on the perceived 'honesty' of the advertiser's intent — a standard that is subjective and difficult to predict. Second, the Consumer Protection Act, 2019, while a welcome modernization of consumer law, inadvertently increases the legal risk of legitimate comparative advertising by subjecting factually defensible but contested claims to quasi-criminal CCPA proceedings. Third, ASCI's self-regulatory framework, though operationally active, lacks enforceability and therefore provides inadequate deterrence against bad actors.

Future research should pursue two directions. First, an empirical study tracking litigation outcomes across Indian High Courts over the past two decades would yield quantitative data on which factual patterns trigger injunctions, enabling advertisers to calibrate their campaigns against measurable legal risk. Second, legislative reform proposals — perhaps modelled on the EU Directive's structured permissibility criteria — deserve systematic evaluation through stakeholder consultation with industry bodies, consumer groups, and the ASCI. A statutory provision explicitly permitting comparative advertising that is truthful, substantiated, and non-denigrating, coupled with a fast-track adjudication mechanism, would serve both competition policy and trademark proprietors' legitimate interests. Until such reform is enacted, advertisers must navigate a landscape in which the boundary between permissible comparison and actionable disparagement remains disturbingly blurred.

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