Delhi air pollution: Centre lifts Stage IV measures under GRAP

With Delhi's air quality index (AQI) improving to ‘very poor’ category, the Commission for Air Quality Management in the National Capital Region (NCR) lifted the stage IV measures under GRAP. The decision was taken after a review meeting was held on Sunday.

The Centre's air quality panel directed authorities to lift the ban on plying of non-BS VI diesel-run light motor vehicles in Delhi-NCR and entry of trucks into the capital imposed under the final stage of the Graded Response Action Plan.

The restrictions were imposed three days ago.


The panel said that NCR's air quality will remain in the same category for the next few days. All measures until only Stage III will apply across NCR from now.


"As the present AQI level of Delhi is around 339 which is about 111 AQI points below the threshold for invoking the GRAP Stage-IV actions (Delhi AQI > 450) and preventive/ mitigative/ restrictive actions under all stages up to Stage-IV are underway, there is a likelihood of sustaining the improvement in AQI.

"The forecast by IMD/ IITM also does not indicate any steep degradation further," an order from the Commission for Air Quality Management read.

GRAP stage IV is a stage of disruptive restrictions that impacts a large number of stakeholders and the public at large. There are no stricter measures, than as laid in GRAP Stage-IV, that could be taken to improve upon the air quality scenario, the commission said.

"The sub-committee, accordingly, hereby decides to revoke the order, issued vide dated November 3, 2022, for actions under Stage-IV of GRAP with immediate effect," it said.

Actions under stages I to III of GRAP will, however, remain invoked and be implemented, monitored and reviewed by all agencies concerned in the entire NCR to ensure that the AQI levels do not slip further to the 'severe' category.