New Delhi, April 14 -- The extraordinary step that US President Donald Trump has taken on April 2 by imposing "reciprocal tariffs", which he described as the "declaration of economic independence", has thrown the global economy in the throes of severe uncertainties that have never been seen since the Great Depression during the 1930s. Trump unveiled the "reciprocal tariffs" through the Executive Order, "Regulating Imports with a Reciprocal Tariff to Rectify Trade Practices that Contribute to Large and Persistent Annual United States Goods Trade Deficits". As many as 57 countries were targeted through the imposition of "reciprocal tariffs", ranging from 11 per cent to 49 per cent, which were to be introduced on April 9. But a few days earl...