Well-known trademark is a mark that has become so widely recognised among the substantial segment of the public that its use in relation to other goods or services would likely indicate a trade connection with the original owner. Under Indian law, it is defined in Section 2(1)(zg) of the Trade Marks Act, 1999, and receives enhanced protection extending even to dissimilar goods and services.
Legal definition
Section 2(1)(zg) of the Trade Marks Act, 1999 provides:
Section 2(1)(zg): "Well-known trade mark", in relation to any goods or services, means a mark which has become so to the substantial segment of the public which uses such goods or receives such services that the use of such mark in relation to other goods or services would be likely to be taken as indicating a connection in the course of trade or rendering of services between those goods or services and a person using the mark in relation to the first-mentioned goods or services.
The determination of well-known status is governed by Section 11(6)-(9), which lists factors the Registrar or court must consider: (1) knowledge or recognition of the mark in the relevant section of the public, (2) duration, extent, and geographical area of use, (3) duration, extent, and geographical area of promotion, (4) duration and geographical area of any registrations or applications, (5) record of successful enforcement, and (6) the value associated with the mark.
Enhanced protection under Section 29(4) extends infringement remedies to the use of identical or similar marks even on dissimilar goods or services, provided the registered mark is well-known in India and the use without due cause takes unfair advantage of, or is detrimental to, the distinctive character or repute of the mark.
How courts have interpreted this term
Tata Sons Ltd. v. Greenpeace International [(2011) Delhi HC]
The Delhi High Court recognised TATA as a well-known trademark under Section 2(1)(zg). However, the Court held that Greenpeace's use of the TATA logo in a satirical online game ("Turtle vs. TATA") as part of an environmental campaign did not constitute infringement because the use was denominative in nature and for purposes of critical comment, not commercial exploitation.
Daimler Benz AG v. Hybo Hindustan [AIR 1994 Delhi 239]
The Delhi High Court held that "Mercedes Benz" is a well-known mark entitled to protection even in respect of goods dissimilar to automobiles. The defendant's use of "Benz" for undergarments was held to be an attempt to take unfair advantage of the distinctive character and repute of the well-known mark.
ITC Ltd. v. Philip Morris [(2010) Delhi HC]
The Delhi High Court held that "Namheen" (ITC's trademark for snack foods) was not a well-known mark because it had not achieved the requisite recognition among the substantial segment of the public. The Court emphasised that well-known status requires more than mere registration — it requires evidence of widespread recognition, extensive use, and significant promotion.
Why this matters
Well-known trademark status confers the broadest scope of protection available under Indian trademark law. Ordinary trademarks are protected only against identical or similar marks used on identical or similar goods. Well-known marks break this barrier — they are protected against use on any goods or services, provided the use takes unfair advantage of or is detrimental to the mark's distinctive character or repute.
For brand owners, achieving well-known status is a significant strategic asset. It enables challenges to later-filed trademark applications for unrelated goods, provides a basis for domain name dispute actions, and strengthens enforcement against dilution (use that blurs the mark's distinctiveness even without consumer confusion).
The Trade Marks Registry maintains a list of marks determined to be well-known under Rule 124 of the Trade Marks Rules, 2017. Marks included in this list receive presumptive well-known status in subsequent proceedings. Notable marks on the list include TATA, Infosys, Reliance, and various international brands.
For applicants seeking registration of marks similar to well-known marks, Section 11(2) creates a relative ground for refusal. Even if the goods or services are dissimilar, the application will be refused if the earlier mark is well-known and the use of the later mark would take unfair advantage or cause detriment.
Related terms
Broader concepts:
Related concepts:
Frequently asked questions
How is a mark determined to be well-known in India?
The Trade Marks Act, Section 11(6)-(9), lists factors: knowledge in the relevant public segment, duration and extent of use, duration and extent of promotion, registrations worldwide, enforcement record, and commercial value. The Registrar or court evaluates these factors. The Trade Marks Registry also maintains a list of well-known marks under Rule 124.
Does well-known trademark protection extend to dissimilar goods?
Yes. Under Section 29(4) of the Trade Marks Act, 1999, infringement of a well-known registered mark extends to the use of identical or similar marks on any goods or services (not just similar ones), provided the use takes unfair advantage of, or is detrimental to, the distinctive character or repute of the well-known mark.
Can well-known status be lost?
Theoretically, yes. If a mark loses its recognition among the substantial segment of the public — for example, through abandonment, non-use, or genericisation — it may lose its well-known status. However, this is extremely rare in practice for established brands.
This entry is part of the Veritect Indian Legal Glossary, a comprehensive reference of Indian legal terminology grounded in statutory text and judicial interpretation.
Last updated: 2026-03-27. Veritect provides this content for informational purposes and does not constitute legal advice.