right under Section 21 in respect of a registered trade mark and also of a passing off by the use of the same mark. The finding in favour of the appellant to which the learned counsel drew our attention was based upon dissimilarity of the packing in which the goods of the two parties were vended, the difference in the physical appearance of the two packets by reason of the variation in the colour and other features and their general getup together with the circumstance that the name and address of the manufactory of the appellant was prominently displayed on his packets and these features were all set out for negativing the respondent's claim that the appellant had passed off his goods as those of the respondent. These matters which are of the essence of the cause of action for relief on the ground of passing off play but a limited role in an action for infringement of a registered trade mark by the registered proprietor who has a statutory right to that mark and who has a statutory remedy for the event of the use by another of that mark or a colourable imitation thereof. While an action for passing off is a Common Law remedy being in substance an action for deceit, that is, a passing off by a person of his own goods as those of another, that is not the gist of an action for infringement. The action for infringement is a statutory remedy conferred on the registered proprietor of a registered trade mark for the vindication of the exclusive right to the use of the trade mark in relation to those goods” (Vide Section 21 of the Act). The use by the defendant of the trade mark of the plaintiff is not essential in an action for passing off, but is the sine qua non in the case of an action for infringement. No doubt, where the evidence in respect of passing off consists merely of the colourable use of a registered trade mark, the essential features of both the actions might coincide in the sense that what would be a colourable imitation of a trade mark in a passing off action would also be such in an action for infringement of the same trade mark. But there the correspondence between the two ceases. In an action for infringement, the plaintiff must, no doubt, make out that the use of the defendant's mark is likely to deceive, but where the similarity between the plaintiff's and the defendant's mark is so close either visually, phonetically or otherwise and the court reaches the conclusion that there is an imitation, no further evidence is required to establish that the plaintiff's rights are violated. Expressed in another way, if the essential features of the trade mark of the plaintiff have been adopted by the defendant, the fact that the get-up, packing and other writing or marks on the goods or on the packets in which he offers his goods for sale show marked differences, or indicate clearly a trade origin different from that of the registered proprietor of
