Delhi NCR is implementing GRAP Stage 3 due to severe air quality, halting non-essential construction and restricting vehicle use. The region's AQI has reached hazardous levels, prompting authorities to enforce stricter measures like banning certain vehicles and limiting construction activities to combat pollution.

Delhi's air quality remains severe, prompting GRAP-III restrictions under which stringent ban will be put in place on construction and demolition activities among others.

Air pollution in India's national capital increased to 'severe' on an official index on Wednesday for the first time this season as temperatures and wind speeds dropped, reducing visibility and affecting some flights.