Passing-off injunction principles: deceptive similarity, established reputation and irreparable harm justified restraint on a similar corporate name.

In passing-off matters, an interlocutory injunction may be granted where the plaintiff shows a prima facie reputation in the mark or name, deceptive similarity likely to cause confusion, and a risk of irreparable injury. The court assesses the resemblance between the competing names, the plaintiff's acquired distinctiveness and secondary meaning, the nature of the parties' businesses, and the balance of convenience. On those principles, a long-used and distinctive corporate name justified restraining use of a deceptively similar trading style, and the confirmation of interim relief was upheld pending trial.

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Issues: Whether the grant of interim injunction restraining the defendant from using the impugned corporate name and trading style in a passing-off action was justified.

Analysis: The governing principles for interlocutory relief in passing-off matters require assessment of likelihood of deception or confusion, the overall resemblance between the competing names, the reputation acquired by the plaintiff's mark, the nature of the parties' businesses, and whether the plaintiff has established a prima facie case, balance of convenience, and likelihood of irreparable injury. The plaintiff's mark had been used for a long period and had acquired distinctiveness and a secondary meaning in trade circles. The defendant had not yet commenced business in a manner sufficient to displace the plaintiff's prima facie case, and the use of a deceptively similar name was likely to create an association with the plaintiff's group.

Conclusion: The interim injunction was rightly granted and its confirmation by the Division Bench called for no interference.

Ratio Decidendi: In a passing-off action, an interlocutory injunction may be granted where the plaintiff shows a prima facie proprietary reputation in the mark or name, a likely confusion or deception arising from deceptive similarity, and a corresponding risk of irreparable harm, even though the final rights remain to be determined at trial.

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