India, Feb. 21 -- The US Supreme Court on Friday ruled that President Donald Trump exceeded his authority by imposing sweeping "reciprocal" tariffs under emergency powers, a decision that narrows executive trade authority and reduces tariff uncertainty for Indian exporters - particularly in electronics, telecom and digital infrastructure supply chains.

In a 6-3 verdict, the Court held that the International Emergency Economic Powers Act (IEEPA) does not authorise the President to unilaterally impose tariffs.

Chief Justice John Roberts wrote that the administration "points to no statute" in which Congress clearly permitted such authority, concluding that the law does not allow duties of "unlimited amount, duration and scope".

The majori...