Delhi Air Pollution: 'Do not relax anti-pollution GRAP-4 curbs without informing us', SC to Delhi government

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.