________ of the Constitution of India lays down that the Union of India and the States are juristic…

The correct choice is: “Article 300”

Article 300 of the Constitution provides that the Government of India may sue or be sued by the name of the Union of India, and the Government of a State by the name of the State. The Union and the States are thus treated as juristic (legal) persons that can bring and defend suits, including suits for torts committed by their servants and for breach of contract.

The other options deal with other matters: “Article 225” preserves the jurisdiction of existing High Courts; “Article 268” concerns duties levied by the Union but collected and appropriated by the States; “Article 348” prescribes English as the language of the Supreme Court, the High Courts and of Acts and Bills.