NEW DELHI, Nov 3 — People in New Delhi woke up to a thick layer of toxic haze on Friday, and some schools were ordered to be shut for two days as the air quality index (AQI) entered the “severe” category in several parts of the Indian capital.

NEW DELHI, Nov 3 — Delhi's 20 million residents were effectively breathing smoke on Thursday (November 3) as the air quality index (AQI) breached the "severe" and "hazardous" categories in nearly all monitoring stations of the Indian capital, raising calls to close schools.