Washington/New Delhi, February 21 US President Donald Trump on Saturday announced a hike in tariffs on all countries to 15 per cent from 10 per cent, which was imposed a day earlier.Following a Supreme Court verdict against his earlier sweeping tariffs, Trump on Friday imposed a 10 per cent tariff on all countries, including India, from February 24 for 150 days.Commenting on the 10 per cent tariff, the Indian government on Saturday said it is studying these and their implications."Based on a thorough, detailed, and complete review of the ridiculous, poorly written, and extraordinarily anti-American decision on Tariffs issued yesterday, after MANY months of contemplation, by the United States Supreme Court, please let this...