Trademark Tarnishment and Dilution

Trademark dilution is a species of infringement, but a peculiar species. Ordinary infringement under Section 29(1) and Section 29(2) of the Trade Marks Act, 1999 protects the proprietor against confusion in the market for the registered goods or services. Dilution under Section 29(4) protects the proprietor against a different kind of harm altogether — the gradual erosion of the distinctive character of a famous mark caused by its use on goods or services entirely unrelated to the proprietor's business. The injury is to the mark itself, not to the consumer.

The 1958 Act contained no equivalent. The dilution principle was developed by the Indian courts under the rubric of passing off, drawing on internationally recognised standards for the protection of well-known marks. In 1999, Parliament codified the principle in Section 29(4), and the infringement provisions in Section 29 now contain a self-contained dilution head distinct from the confusion-based heads.

Statutory anchor — Section 29(4)

Section 29(4) provides that a registered trade mark is infringed by a person who, not being a registered proprietor or a person using by way of permitted use, uses in the course of trade a mark which (i) is identical with or similar to the registered trade mark, and (ii) is used in relation to goods or services which are not similar to those for which the trade mark is registered, and (iii) the registered trade mark has a reputation in India and the use of the mark without due cause takes unfair advantage of, or is detrimental to, the distinctive character or repute of the registered trade mark.

Each of the three limbs must be independently proved. There is no statutory presumption analogous to Section 29(3); the proprietor cannot move from similarity of marks to dilution without affirmatively establishing reputation in India and unfair advantage or detriment to distinctive character or repute. The Delhi High Court emphasised the point in ITC Ltd. v. Philip Morris Products SA 2010 (42) PTC 572 (Del) when it noted that, unlike the case of confusion-based infringement under Section 29(2), there is no presumption of infringement in the dilution head — every element has to be established.

Dilution distinguished from confusion-based infringement

The doctrinal architecture of Section 29(4) is best grasped through three contrasts with the confusion-based heads in Section 29(1) and (2).

Goods or services. Sections 29(1) and (2) operate where the defendant uses an identical or deceptively similar mark on the same or similar goods or services. Section 29(4) operates only where the goods or services are dissimilar. If the marks coincide on similar goods, the case is one of conventional infringement, not dilution.

Confusion test. The likelihood-of-confusion test that animates Sections 29(1), (2) and (3) is absent from Section 29(4). Parliament has consciously eschewed the deceptively-similar standard. The court in ITC v. Philip Morris drew the inference that the identity-or-similarity threshold for dilution is a notch higher than the deceptive-similarity threshold for confusion-based infringement: the proprietor must establish a near identification or very close similarity of the marks, not mere deceptive similarity.

Reputation requirement. Sections 29(1) and (2) require no proof of reputation. Section 29(4) requires affirmative proof that the registered mark has a reputation in India. Reputation here is a knowledge threshold — the mark must be known to a significant part of the public concerned with the products or services covered by the mark, taking into account market share, intensity, geographical extent and duration of use, and the size of the investment made in promoting the mark.

This three-fold structure means that Section 29(4) protects a smaller universe of marks (those of repute) but against a wider range of conduct (use on dissimilar goods). The trade-off reflects the underlying economic justification for dilution doctrine: a mark of repute carries an investment value — what Frank Schechter, in his 1927 article, called the "uniqueness of the trademark" — that is harmed by indiscriminate use even where no consumer is confused.

The two species of dilution — blurring and tarnishment

Dilution under Section 29(4) takes two recognised forms.

Dilution by blurring occurs when the use of an identical or similar mark on dissimilar goods erodes the unique association between the senior mark and the senior user's goods or services. The famous mark MERCEDES, applied to a thermos or a casserole, does not confuse anyone — no buyer thinks the thermos comes from Daimler — but it weakens the unique mental link between MERCEDES and high-end automobiles. The Delhi High Court in Daimler Benz Aktiengesellschaft v. Eagle Flask Industries Ltd. ILR (1995) Del 817 accepted exactly this rationale. The court observed that there are marks which have become household words, that MERCEDES applied to a car has a unique place in the world, and that the trade mark law is not intended to protect a person who deliberately sets out to take the benefit of someone else's reputation. Use of the name MERCEDES on a thermos was held to be an actionable dilution.

Dilution by tarnishment occurs where the junior use sullies, degrades or impairs the distinctive quality of the senior mark by associating it with inferior, unsavoury or otherwise damaging contexts. The classic illustration is the use of an advertising line such as "Drink Cocaine" rendered in the same font and stylised script as Coca-Cola — the junior use does not confuse, but it degrades. Tarnishment is functionally close to dilution by blurring but it operates by attack on the mark's repute rather than by erosion of its distinctiveness.

The boundary between identical-or-similar-goods infringement under Section 29(2) and dissimilar-goods dilution under Section 29(4) is also the doctrinal hinge of the wider Section 29 infringement scheme. Justice Kapoor in Caterpillar Inc. v. Mehtab Ahmed 2002 (25) PTC 440 (Del) recognised six categories of word marks that qualify for protection against dilution, and observed that any attempt to mutilate or simulate them amounts to passing off as it demonstrates an element of mala fides — cashing in on the reputation and goodwill of the senior mark. The court was clear that, for tarnishment, no proof of likelihood of confusion as to source, affiliation or connection is required. Trade mark is a property; no unauthorised person can be permitted to commit trespass on it.

The reputation requirement

Section 29(4) protects only registered marks that have a reputation in India. The European Court of Justice in General Motors Corp v. Yplon SA [1999] All ER (EC) 865 — which has been treated as persuasive in Indian decisions — described the reputation threshold as a "knowledge threshold". The mark must be known by a significant part of the public concerned by the products or services covered by it. The court must take into account all relevant facts, in particular the market share held by the mark, the intensity, geographical extent and duration of its use, and the size of the investment made by the undertaking in promoting it.

The reputation requirement is not the same as the well-known mark threshold under Section 11(6) to (10). A mark may have reputation in India for Section 29(4) purposes without yet having been formally recognised as a well-known mark. But the formal recognition under the well-known trademarks regime simplifies the proprietor's evidential task in a Section 29(4) action by supplying a recorded determination on the reputation limb.

The linkage requirement

Even where the marks are similar and the senior mark has a reputation in India, the proprietor must establish that the junior use brings the senior mark to the mind of the relevant public. Without this mental association — the "link" — there can be no dilution. Professor McCarthy's formulation, accepted in Indian decisions, is that if a reasonable buyer is not at all likely to think of the senior user's mark in his or her own mind even subtly or subliminally, then there can be no dilution. How, McCarthy asks, can there be any whittling away if the buyer, upon seeing the defendant's mark, would never even unconsciously think of the plaintiff's mark?

The European Court of Justice in Intel Corp Inc v. CPM United Kingdom Ltd 2009 ETMR 13 elaborated the link requirement. Even identical marks do not necessarily generate a link if the relevant publics for the two registrations are entirely distinct. The strength of the senior mark's reputation, the degree of its inherent or acquired distinctive character, and the nature of the goods or services for which the conflicting marks are registered all bear on whether the relevant public will make the link. A famous mark for one class of goods does not, merely by being famous, generate a link with every other class.

ITC v. Philip Morris — the Indian framework on dilution

ITC Ltd. v. Philip Morris Products SA 2010 (42) PTC 572 (Del) is the leading Indian exposition of the Section 29(4) ingredients. ITC was the registered proprietor of the WELCOMGROUP W-NAMASTE logo, used principally for its hospitality services. ITC alleged that Philip Morris had introduced a flaming "M" device on its Marlboro cigarette packaging — a stylised "M" tilted to the right and depicted in flames — that was similar to the W-NAMASTE logo and that the use diluted the distinctive character of the W-NAMASTE mark.

The Delhi High Court summarised the four ingredients of Section 29(4): (a) the impugned mark must be identical or similar to the senior mark; (b) the senior mark must have a reputation in India; (c) the use of the impugned mark must be without due cause; and (d) the use must take unfair advantage of, or be detrimental to, the distinctive character or repute of the registered mark. The court emphasised that, unlike conventional infringement, dilution carries no presumption — each element must be independently established.

Applying these ingredients, the court held that the two marks were not identical or similar in the sense that the higher Section 29(4) threshold demanded. The W-NAMASTE logo was the stylised depiction of the Indian greeting Namaste, used as part of larger composite marks invariably accompanied by words such as "ITC WELCOM HOTEL". The defendant's flaming M was used with the prominent word Marlboro and was tied to a Diwali festive packaging. There was no "identity" or "similarity" in the overall presentation of the two marks. Even assuming similarity, ITC had not shown that the W-NAMASTE mark's reputation in the hospitality industry would be detrimentally affected by use of the flaming M on cigarettes — the relevant publics were different, and the linkage required for dilution was absent.

The same dichotomy between use on identical or similar goods and use on dissimilar goods underlies the entire scheme of the exclusive right under Section 28. The court's reasoning is instructive on three doctrinal points. First, the test for similarity in Section 29(4) is stricter than for Section 29(2): Parliament has eschewed deceptive similarity and required identity or close similarity. Second, the court is to take a global look at the rival marks rather than focus on common elements in isolation. Third, the linkage requirement is independently necessary: without a credible bridge between the publics for the two marks, the unfair-advantage and detriment limbs cannot be satisfied.

Tarnishment in Indian case-law

The leading Indian case on dilution by tarnishment is Pepsi Co. Inc. v. Hindustan Coca Cola Ltd. 2003 (27) PTC 305 (Del) (DB). The Division Bench held that an advertising commercial which depicted the rival's drink as a "bachon wali drink" — fit only for children — and ridiculed the choice of that drink as a "wrong choice baby" amounted to disparagement of the rival's product. The court drew a clean line between honest puffery and slander of goods. A trader can declare his own goods to be the best in the world, can claim that his goods are better than the rival's, and can compare features. What he cannot do is call the rival's goods bad or inferior, or depict them in a derogatory or mocking manner.

The court held that the manner of the commercial — repeatedly telecast on electronic media to leave an indelible impression on the viewer — conveyed the message that PEPSI was simply a sweet thing not meant for grown-up or growing children, and that the choice of PEPSI was a "wrong choice". The use of the registered Globe Device and the colour scheme on the bottle on which the word "PAPPI" was written, combined with the slogan "Yeh Dil Maange No More", constituted infringement of the registered trade mark in terms of Section 29(1) and tarnished the goodwill of the appellant.

The same principle was applied by the Delhi High Court in Dabur India Ltd. v. Colgate Palmolive India Ltd. AIR 2005 Del 102. The advertisement complained of described "Lal Dant Manjan" tooth powder as severely detrimental to dental health and as akin to sandpapering. The court held that the position of law in respect of disparaging advertisements is well settled: a tradesman is entitled to declare his goods to be best in the world, and can compare advantages, but he cannot, while saying that his goods are better than the competitors', say that his competitors' goods are bad. To do so amounts to slander of the competitors' goods. The court also held that a generic disparagement of a class of products entitles the manufacturer of products within that class to complain, and that the manufacturer of an identifiable disparaged product retains the cause of action even if the product is not specifically named.

Comparative advertising and disparagement under Section 29(8)

Section 29(8) is the statutory bridge between the dilution head and the regulation of comparative advertising. A registered trade mark is infringed by any advertising of the mark if such advertising (a) takes unfair advantage of and is contrary to honest practices in industrial or commercial matters, (b) is detrimental to the distinctive character of the mark, or (c) is against the reputation of the trade mark.

The Calcutta High Court in Reckitt & Colman of India Ltd. v. M.P. Ramchandran 1999 PTC (19) 741 — a frequently cited starting point — held that the question is whether the advertisement merely puffs the product of the advertiser or, in the garb of doing so, directly or indirectly contends that the product of the other trader is inferior. In Reckitt & Colman of India v. Kiwi TTK Ltd. 1996 PTC (16) 393 the court held that comparative advertising is permissible but a promoter is not entitled to defame the goods of the competitor; the courts will injunct the defendant from publishing or circulating an article if the dominant purpose is to injure the reputation of the plaintiff.

The five-point summary that the Delhi High Court has drawn from the Reckitt and Dabur lines may be reproduced as a checklist: (i) a tradesman is entitled to declare his goods to be best in the world even though the declaration is untrue; (ii) he can also say his goods are better than the competitors', even if the statement is untrue; (iii) for that purpose he can compare the advantages of his goods over the competitors'; (iv) he cannot, however, say that the competitors' goods are bad — to do so is to slander them; (v) if there is no defamation no action lies, but if there is defamation an action lies and the court is competent to grant an injunction restraining repetition.

Trade dress, get-up and dilution by appropriation

Dilution analysis in India has also extended to trade dress. The Delhi High Court in Colgate Palmolive Co. v. Anchor Health and Beauty Care Pvt. Ltd. 2003 (27) PTC 478 (Del) held that no party can have a monopoly over a particular colour, but if there is substantial reproduction of the colour combination in the same order on the container or packaging which has, over a period, been imprinted on the minds of customers, it is liable to cause not only confusion but also dilution of the distinctiveness of the colour combination. Colour combination, get-up, layout and size of container is a sort of trade dress which involves an overall image of the product's features.

The structural breadth of "mark" itself — including device, label, packaging and combination of colours under the definitions in Section 2 — is what makes trade-dress dilution analysis possible. The same court in N. Ranga Rao and Sons v. Anil Garg 2006 (32) PTC 15 (Del) held that the defendants' use of the mark DIA in the same colour scheme, font, layout and price as the plaintiff's LIA range of agarbathies amounted to deceptive similarity and to dilution of the plaintiff's brand-name equity. The court emphasised that what matters is the whole combination — phonetic similarity, similar colour scheme, similar packaging and similar pricing — taken together, not any one feature in isolation.

In Aktiebolaget Volvo v. A.K. Bhuva 2006 (32) PTC 682 the Delhi High Court accepted that the concept of trade mark dilution through injurious association in relation to dissimilar goods or services is well-entrenched in India in respect of distinctive and well-known trade marks. The court reasoned that even though the trade mark or name may relate to specified goods or a few of them, its indiscriminate use by others in respect of unrelated goods would blur the identity of the mark, diminish it and ultimately extinguish its distinctiveness. Section 29(4), the court held, achieves the objective of protecting such distinctive marks.

Defences and the Section 30 limits

A defendant accused of dilution under Section 29(4) may attempt to bring his use within Section 30. The interaction with the absolute grounds in Section 9 may also become relevant where the senior mark's distinctive character is challenged on validity grounds. The honest-practices rule in Section 30(1) is the most general defence: there is no infringement where the use of the mark is in accordance with honest practices in industrial or commercial matters and is not such as to take unfair advantage of, or be detrimental to, the distinctive character or repute of the trade mark. The Section 29(4) language and the Section 30(1) language overlap deliberately — what disqualifies a use under Section 30(1) is precisely what makes the same use actionable under Section 29(4). The defendant who hopes to invoke Section 30(1) must therefore show that his use was both honest and innocuous. The detailed catalogue of specific defences in Section 30(2) is treated in our chapter on the limitations on the effect of a registered trade mark.

Burden of proof in a Section 29(4) action

As with any infringement action, the suit is governed by the forum and remedies provisions in Sections 134 and 135 (common to passing off and infringement). The proprietor must affirmatively establish each of the four ingredients: identity or similarity (at the higher Section 29(4) threshold), use in relation to dissimilar goods or services, reputation in India of the registered mark, and unfair advantage to the defendant or detriment to the distinctive character or repute of the mark. There is no presumption corresponding to Section 29(3); each ingredient is a positive matter for the proprietor to plead and prove. The Bombay High Court in Balkrishna Hatcheries v. Nandos International Ltd. 2007 (35) PTC 295 (Bom) refused relief under Section 29(4) precisely because the plaintiff had not pleaded — let alone proved — that the defendant's use of NANDOS without due cause took unfair advantage of, or was detrimental to, the distinctive character or repute of the plaintiff's NANDUS mark.

Distinguishing dilution from cognate provisions

Dilution vs Section 29(2) infringement. Section 29(2) requires goods or services that are identical or similar; Section 29(4) requires goods or services that are dissimilar. Section 29(2) requires likelihood of confusion or association; Section 29(4) does not. Section 29(2) does not require reputation; Section 29(4) does. Section 29(2) operates on a deceptive-similarity threshold; Section 29(4) requires identity or close similarity.

Dilution vs passing off. Passing off requires the classical trinity of goodwill, misrepresentation and damage. Dilution does not require misrepresentation. The senior user's claim in dilution is that the junior use, even though it deceives no one, harms the mark itself. Dilution is therefore a wider remedy in form, but it is available only to registered proprietors of marks of repute and is supplemented by the higher similarity threshold; passing off is available to anyone with goodwill but requires proof of misrepresentation and damage.

Dilution vs Section 29(8) advertising infringement. Section 29(8) is concerned with the manner of advertising — whether it takes unfair advantage, is detrimental to distinctive character, or is against the reputation of the mark. Section 29(4) is concerned with use of the mark on dissimilar goods. The two heads can overlap — disparaging advertising that uses the rival's mark on dissimilar goods can engage both — but Section 29(4) does not require an advertising context, whereas Section 29(8) does.

Practical and exam takeaways

For state judiciary mains, CLAT PG and SEBI Legal Officer papers, Section 29(4) and the dilution doctrine are most often tested through:

1. The four ingredients of Section 29(4) — identity or close similarity, dissimilar goods or services, reputation in India, and unfair advantage or detriment to distinctive character or repute. Confusion is not required. There is no statutory presumption.
2. The two species of dilution — blurring (erosion of distinctiveness) and tarnishment (impairment of repute) — and the linkage requirement that connects them.
3. The Pepsi v. Hindustan Coca Cola distinction between permissible puffery and actionable disparagement under Section 29(8) read with the dilution principle.
4. The ITC v. Philip Morris framework: similarity at the higher Section 29(4) threshold, dissimilar goods, and the absence of linkage between the publics for the two registered marks.
5. The trade-dress dilution principle from Colgate Palmolive v. Anchor Health and N. Ranga Rao v. Anil Garg — colour combinations and packaging features can themselves be objects of dilution.

The two most common errors in exam answers are (a) treating Section 29(4) as merely an extension of Section 29(2) — it is not; the goods must be dissimilar, the reputation must be proved, and the threshold of similarity is higher — and (b) pleading dilution without addressing the linkage requirement. A prudent answer always names the four ingredients, distinguishes blurring from tarnishment, and ties the analysis to ITC v. Philip Morris on the framework and Pepsi v. Coca-Cola on tarnishment. For the procedural questions of forum, remedies and penal liability, see also our chapters on the trademark tribunal and civil court jurisdiction and on offences and penalties under Sections 101 to 121.

Frequently asked questions

What is the difference between dilution by blurring and dilution by tarnishment?

Dilution by blurring occurs when use of an identical or similar mark on dissimilar goods erodes the unique mental association between the senior mark and the senior user's goods. The famous illustration is the use of MERCEDES on a thermos — no consumer is confused, but the unique association between MERCEDES and high-end automobiles is weakened. Dilution by tarnishment occurs where the junior use sullies, degrades or impairs the distinctive quality of the senior mark by associating it with inferior, unsavoury or otherwise damaging contexts. Both are protected against under Section 29(4) read with the case-law on disparagement.

Does Section 29(4) require proof of likelihood of confusion?

No. Section 29(4) operates without the likelihood-of-confusion test. The Delhi High Court in ITC Ltd. v. Philip Morris held that Parliament has consciously eschewed the deceptively-similar standard for Section 29(4); the identity or similarity standard is a notch higher than the standard for confusion-based infringement. The proprietor must instead establish reputation of the mark in India and use without due cause that takes unfair advantage of, or is detrimental to, the distinctive character or repute of the mark. Confusion need not be shown — and in many genuine dilution fact-patterns there is no consumer confusion at all.

Does Section 29(4) protect only well-known marks?

Section 29(4) protects registered marks that have a reputation in India. A mark may have reputation for Section 29(4) purposes without yet being formally recognised as a well-known mark under Section 11(6) to (10). The European Court of Justice in General Motors v. Yplon described reputation as a knowledge threshold — the mark must be known by a significant part of the public concerned. Formal recognition as a well-known mark simplifies the proprietor's evidential task on the reputation limb but is not a precondition for Section 29(4).

Is comparative advertising automatically actionable as dilution?

No. Comparative advertising is permitted under Indian law subject to the limits in Section 29(8). A trader can declare his own goods to be the best in the world, can claim that his goods are better than the rival's, and can compare features — even if his self-praise is exaggerated. What he cannot do is call the rival's goods bad or inferior, or depict them in a derogatory or mocking manner. Pepsi v. Hindustan Coca Cola is the leading authority distinguishing puffery from actionable disparagement, and Reckitt & Colman v. Kiwi TTK Ltd. is the foundational decision on the test.

Can colour combination or packaging be the subject of dilution?

Yes. The Delhi High Court in Colgate Palmolive v. Anchor Health and Beauty Care held that, while no party can have a monopoly over a particular colour, substantial reproduction of a colour combination in the same order on the container or packaging — once it has been imprinted on consumer minds — can amount to dilution of the distinctiveness of the colour combination. Trade dress, get-up, layout and size of container are protected as part of the overall image of the product's features. The same approach was followed in N. Ranga Rao v. Anil Garg in respect of agarbathi packaging.