The Supreme Court has ordered all Delhi-NCR governments to ensure strict implementation of GRAP Stage IV rules amid rising air pollution levels. The curbs will remain in place even if air quality index falls below the ‘severe plus’ mark of 450.

IV restrictions are imposed in the national capital in a bid to combat the adverse effects of pollution. The Supreme Court on Monday asked authorities not to lift the curbs without obtaining its permission even if the AQI falls below 450.

The Supreme Court of India has ordered the closure of 10th and 12th-grade classes across the Delhi-National Capital Region (NCR) due to the worsening air quality

Delhi recorded air pollution more than 17 times above an acceptable level as worsening smog triggered curbs on trucking and shuttered construction sites and schools.

In Delhi NCR, GRAP Stage 4 was implemented by the Commission for Air Quality Management (CAQM) at 8 a.m. today after the Air Quality Index (AQI) fell into the "severe plus" category. This decision was reached following an urgent meeting of the GRAP subcommittee on November 17,

The Supreme Court censured the Commission for Air Quality Management for Delhi and adjoining areas for delaying the imposition of GRAP 3 and 4 curbs

The air quality in Delhi deteriorated, prompting GRAP IV restrictions. Schools for students up to Class 11 will switch to online learning, construction work will be banned, and only specific vehicles