Comparative advertising and generic disparagement can justify an injunction when a commercial denigrates a rival product class.

Comparative advertising is permissible only when it remains puffery and does not denigrate a rival product or class of products. The Delhi High Court treated the impugned commercial as generic disparagement of Lal Dant Manjan tooth powders, holding that a rival class can be targeted by implication even without expressly naming the manufacturer or product. On interim relief, the Court found a prima facie case, balance of convenience, and irreparable injury in favour of the plaintiff, and restrained further telecast of the television commercial. The note emphasises that attacks on a class of goods within which the plaintiff falls may justify injunctive relief.

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Issues: (i) Whether a trader may, in comparative advertising, denigrate a rival class of products without specifically naming the rival manufacturer or product; (ii) whether the plaintiff was entitled to interim injunction against telecast of the impugned television commercial.

Issue (i): Whether a trader may, in comparative advertising, denigrate a rival class of products without specifically naming the rival manufacturer or product.

Analysis: The impugned commercial was held to be a clear attack on the generic class of Lal Dant Manjan tooth powders and not merely permissible puffery of the defendant's own product. The Court held that generic disparagement is actionable where the advertisement, by implication and visual reference, targets a class of goods within which the plaintiff falls. The Court further held that a trader may praise its own goods, but cannot call a rival's goods bad or damaging, and that such conduct is objectionable even if the rival product is not expressly named. Reference was also made to the statutory protection against advertising of a registered mark in a manner contrary to honest practices and against its reputation.

Conclusion: Generic disparagement of the rival product class was held to be actionable, and the absence of an express identification of the plaintiff's product did not defeat the complaint.

Issue (ii): Whether the plaintiff was entitled to interim injunction against telecast of the impugned television commercial.

Analysis: The Court found a prima facie case in favour of the plaintiff because the advertisement directly conveyed that Lal Dant Manjan powder was harmful and the defendant did not dispute that its campaign conveyed deleterious effects. The Court held that the balance of convenience lay with the plaintiff, since the impact of a visual-media campaign could not be easily repaired, and that refusal of relief would cause irreparable injury not compensable in damages. The Court therefore restrained further telecast of the impugned commercial.

Conclusion: The plaintiff was held entitled to interim injunction restraining telecast of the television commercial.

Final Conclusion: The impugned advertisement was treated as impermissible disparagement, and interlocutory protection was granted to prevent its continued telecast.

Ratio Decidendi: Comparative advertising is permissible only so long as it remains in the realm of puffery and does not denigrate a rival product or class of products; generic disparagement that targets a class within which the plaintiff's goods fall can justify injunctive relief.

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