Updated On: 11 November, 2025 10:32 PM IST | Tarun Verma
With the air quality in the national capital deteriorating sharply, the Commission for Air Quality Management (CAQM) on Tuesday invoked the Stage-3 curbs under the Graded Response Action Plan (GRAP) across the entire National Capital Region (NCR), categorising Delhi`s air quality as `severe`. PICS/PTI

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The sub-committee of CAQM invoked the measures after the Air Quality Index (AQI) in Delhi surged from 362 on Monday to 425 on Tuesday morning, citing calm winds, a stable atmosphere, and unfavourable meteorological conditions as key factors behind the sudden spike
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Under Stage-3 of GRAP, several additional restrictions come into force, including a ban on construction and demolition activities, except for essential projects such as roads, railways, and airports

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Industries using unapproved fuels are also required to halt operations, while agencies are mandated to intensify mechanical road cleaning and dust suppression through water sprinkling
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The CAQM noted that the decision aims to "prevent further deterioration of air quality in the region" and is in addition to measures already in effect under Stages-1 and 2

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The GRAP Stage-3 corresponds to the `severe` category, applicable when the AQI ranges between 401 and 450.
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