Air quality is likely to remain in the 'severe' or 'severe-plus' category during the week due to heavy fog and unfavourable weather conditions

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,

Supreme Court has ordered the continuation of GRAP-4 restrictions in Delhi-NCR due to alarming air pollution levels, emphasising the urgent need for action to combat the deteriorating air quality

A bench of Justices Abhay S Oka and Augustine George Masih pointed out that there was a delay in implementation of preventive measures under stage 4 of the Graded Response Action Plan (GRAP) even after the Air Quality Index (AQI) touched alarming levels in the national capital.

Air quality in northern India has worsened over the past week, with New Delhi's AQI recording a reading of 465, classified as "severe plus category", on Sunday evening due to unfavourable meteorological conditions,