During his Friday speech, Modi also hinted India would continue its unilateral suspension of the Indus Water Treaty. The treaty, which India suspended after the April massacre, allows sharing of the Indus River that runs about 2,897 kilometers (1,800 miles) through South Asia and is a lifeline for both countries.

Mr Modi did not mention the tariffs or the US in his speech that lasted nearly two hours. Last week, US president Donald Trump imposed an additional 25 per cent tariff on Indian goods, citing New Delhi's continued imports of Russian oil in a move that sharply escalated tensions between the two nations.

NEW DELHI (Reuters) -Indian Prime Minister Narendra Modi said on Friday the goods and services tax (GST) would be reformed and taxes lowered by Diwali, the Hindu festival of lights, set to be celebrated in October this year.