Bawana recorded the highest AQI of 497 at 7 am, placing it in the 'severe' category. Narela is recording an AQI of 492, and Okhla Phase 2 is recording an AQI of 474.

Work from home has been mandated for 50% of Delhi’s workforce after GRAP-IV curbs were imposed as air quality slipped into the ‘severe+’ category.

As Delhi’s air quality slipped again into the “severe” category on Saturday, the Commission for Air Quality Management in NCR and Adjoining Areas (CAQM) imposed Stage 3 of the Graded Response Action Plan (GRAP).

Delhi schools move to hybrid classes up to Class IX and XI as GRAP-IV curbs kick in amid severe air pollution.

According to Central Pollution Control Board (CPCB) data, Delhi’s AQI stood at 401 (severe) at 11 am on Saturday, worsening from a 24-hour average of 349 (very poor) recorded at 4 pm on Friday.

The Delhi government has directed 50% of its employees as well as staff in private offices to work from home as stricter pollution norms under the Graded Response Action Plan (GRAP) Stage 4 came into effect on Saturday.

Revised GRAP advances severity thresholds, triggering stricter measures at lower AQI levels. Stage 4 curbs, including 50% office staff and work-from-home, now activate at AQI 301-400.

The air quality of the national capital and surrounding areas continues to deteriorate on Sunday morning as CAQM has invoked all actions under GRAP Stage-IV in Delhi-NCR, areas like Anand Vihar, ITO area, as a thick layer of toxic smog blankets the city, with AQI (Air Quality Index) around the area is 491 and 485.

GRAP Stage 4: Air quality in Delhi slipped into the ‘Severe Plus’ category, with the Air Quality Index (AQI) crossing 450.