The defendants are in appeal, challenging the grant of an order of temporary injunction restraining them from manufacturing or selling or in any manner dealing with any product similar or identical to a product of the plaintiff, respondent herein, known as Turbostop, a contoured impact pad which is used in steel plants to withstand the impact of molten steel that is poured into a vessel called Tundish, in casting and processing of steel. The contoured impact pad prevents the molten steel from perforating the tundish and enables the controlled containment and flow of steel.

2. The parties are referred to by their rank before the Trial Court for convenience.

3. The facts of the case as narrated by the parties are as follows. The plaintiff is a company incorporated under the Companies Act, 1956 and was established in the year 1958. It is engaged in the manufacture of specialty chemicals and allied products pertaining to Foundry and steel industry. It has its own research and development wing engaged in developing newer processes and innovative technologies. The pla1ntiff is part of the FOSECO Group of Companies, which carry a worldwide reputation. The group, including the pla