The Indian rupee plunged to a fresh all-time low, breaching the 87/$1 mark on Monday, as escalating global trade tensions triggered a wave of risk aversion. The sharp decline was set off by US President Donald Trump’s decision to impose hefty tariffs—25% on Canada and Mexico, and 10% on China—rekindling fears of a disruptive global trade war.In a swift retaliatory move, Canada and Mexico imposed duties on US exports, adding to the uncertainty in global markets.