New Delhi, Nov. 22 -- As Delhi air pollution continues to choke residents of the national capital, the Commission for Air Quality Management (CAQM) has tightened the Graded Response Action Plan (GRAP) measures.

The CAQM's decision comes days after the Supreme Court allowed major revisions under GRAP, with the commission saying that some GRAP Stage 4 measures will be enforced under GRAP Stage 3.

Delhi's overall AQI stood at 360 in the 'very poor' category at 9 am on Saturday, according to the Central Pollution Control Board (CPCB).

The changes, which were finalised on November 21, brings stricter measures to earlier stages of the short-term plan.

This means that some rules under GRAP Stage 4, which is enacted when AQI is above 450, wil...