Indian opposition parties criticised the government on Thursday, describing U.S. President Donald Trump's threat of a 25% tariff as a diplomatic failure for New Delhi, while the rupee currency tumbled and equity indexes slid in response to the news.

India’s prime minister has made a big effort to build closer ties using his rapport with the U.S. president, but critics say he is getting little in return.

Congress and other opposition leaders on Wednesday took jibes at the Modi government over Donald Trump announcing a 25 per cent tariff and an extra penalty on Indian goods, but also slammed the US President's move,