Despite five rounds of discussions, the latest led by chief negotiator Rajesh Agrawal in Washington, the two sides have failed to narrow their differences, the news agency reported.

The prospects of an interim trade deal between India and the United States before Washington's August 1 deadline have dimmed, as talks remain deadlocked over tariff cuts on key agricultural and dairy products,

India has rejected Australia's push for deeper tariff cuts on dairy and alcohol, hampering efforts to conclude the second phase of a trade pact by year-end, two Indian government sources said.