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Delhi schools to resume classes from November 20 after GRAP IV curbs lifted

The Centre's Graded Response Action Plan (GRAP) for Delhi-NCR categorises actions to control pollution into four stages: Stage I -- Poor (AQI 201-300), Stage II -- Very Poor (AQI 301-400), Stage III -- Severe (AQI 401-450) and Stage IV -- Severe Plus (AQI above 450).
Last Updated : 18 November 2023, 16:43 IST
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Published 18 November 2023, 16:43 IST

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