In Karamchand Appliances Pvt. Ltd. Vs. Adhikary Brothers & Ors. , Hon’ble Delhi High Court held that a manufacturer is entitled to boast that his goods are the best in the world, even if such a claim is factually incorrect, and while a claim that the goods of a manufacturer are the best may not provide a cause of action to any other trader or manufacturer of similar goods , the moment the rival manufacturer or trader disparages or defames the goods of another manufacturer or trader, the aggrieved trader would be entitled to seek relieves including redress by way of a prohibitory injunction
The defendant is indeed entitled to boast that its product is the latest in the market and even the best but it cannot describe either the technology or the concept used by any other manufacturer or trader in the manufacture or sale of his products as obsolete or worthless. Comparative advertisement is permissible, so long as such comparison does not disparage or denigrate the trademark or the products of a competitor. Comparison of different features of two products showing the advantages, which one product enjoy over the other is also permissible provided such comparison stops short of discrediting or denigrating the other product.”