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.

Pollution levels in Delhi have reached dangerous levels, prompting the government to enforce Stage 4 measures of GRAP. On Tuesday morning, the country's capital city experienced a 'severe' Air Quality Index (AQI),

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.