The visibility at Safdarjung, which is representative of Delhi’s weather, and Palam dropped to 100m at 5.30 am and continued to remain the same until 7.30am

The Commission for Air Quality Management has revoked Stage IV of the Graded Response Action Plan (GRAP) for the National Capital Region but will keep measures under Stages I, II, and III in place.

The decision comes after Delhi's Air Quality Index (AQI) improved to 369 ('Very Poor') at 4 PM on December 24, down from a peak of 401 ('Severe') recorded on December 16.

At 8.30 a.m., Delhi's Air Quality Index (AQI) stood at 402, in the 'severe' category, Central Pollution Control Board (CPCB) data showed.

Restrictions under stages 1, 2 and 3 would remain in force to prevent any deterioration of air quality, the CAQM said.

The 24-hour average Air Quality Index (AQI) was recorded at 369 (”very poor”) at 4pm on Tuesday, a significant improvement from Monday’s 406 (”severe”).

"Actions under Stage I, II, and III of the revised GRAP shall remain invoked and be implemented, monitored, and reviewed by all the agencies concerned in the entire NCR to ensure

The Central Government's air quality monitoring body has repealed Stage IV ('Severe+') Graded Response Action Plan (GRAP) measures in Delhi and the National Capital Region (NCR) due to improved air quality.

The Commission for Air Quality Management (CAQM) on Tuesday revoked Stage 4 of the Graded Response Action Plan (GRAP) across NCR, reported ANI. However, measures under stages 1, 2 and 3 will remain in force to manage pollution levels.