MUMBAI, June 15 -- In a late sell-off, Indian equities slipped nearly 1% on Friday as investors worried about an escalating trade war after India imposed retaliatory tariffs on a bunch of US products. The BSE Sensex ended at 39,452.07, down 289.29 points or 0.73%, while the Nifty closed at 11,823.30, down 90.75 points or 0.76%. ...