Delhi's 2nd-worst air day on record, SC says Grap-4 to go on till further orders
With air pollution in Delhi reaching life-threatening 'severe plus' levels, Supreme Court on Monday directed Delhi and NCR states - UP, Haryana, Rajasthan and Punjab - to strictly enforce stage IV of the Graded Response Action Plan (Grap) and immediately take a call on measures such as closing schools for all classes,