This judgment settles several critical points in patent litigation, particularly for biologics in quia timet scenarios, affirming that product-to-claim mapping under Rule 3(A)(ix) of the Delhi High Court Patent Suits Rules cannot be entirely dispensed with, even in anticipatory actions; the phrase “to the extent possible” allows flexibility but demands maximum feasible effort, and collateral evidence alone may not suffice for prima facie infringement without raising triable issues.

This judgment settles that in trademark disputes involving registered marks, no statutory infringement action lies against another registered proprietor under Section 28(3) of the Trade Marks Act, 1999, but passing off remains actionable under common law via Section 27(2), provided the plaintiff proves prior goodwill predating the defendant’s use, misrepresentation, and damage.