According to the System of Air Quality & Weather Forecasting & Research (SAFAR), Delhi's air quality continued to be in the 'very poor' category for the fourth consecutive day.

"Delhi's air quality has worsened for a few days. People should not go to crowded places and go out in the sun. They should also use N95 marks for their protection," Sarin said, as quoted by news agency ANI.

"People should not go out early in the morning and late at night to avoid pollution," she added.

Authorities are scrambling to combat the air pollution crisis, with the Commission on Air Quality Management (CAQM) widening the curbs across NCR late Tuesday. It extended the ban on construction and demolition activities, and offline classes in Delhi to all cities in the NCR. Entry of all trucks, except those carting essential commodities, have also been banned till November 21.

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