India, May 29 -- A U.S. federal court has blocked a bulk of sweeping global tariffs announced by President Donald Trump, ruling that he overstepped his authority to impose them by using emergency economic powers.

The US Court of International Trade ruled that an emergency law invoked by the White House does not give the president unilateral authority to impose tariffs across the world, while noting that under the Constitution, Congress holds exclusive powers to regulate international commerce.

"The court does not pass upon the wisdom or likely effectiveness of the President's use of tariffs as leverage. That use is impermissible not because it is unwise or ineffective, but because [federal law] does not allow it," the court said in the de...