Delhi air pollution: Supreme Court flags GRAP-4 lapses, seeks report on heavy vehicles' entry

The Supreme Court on Friday resumed hearing in the plea seeking directions to curb air pollution in Delhi-NCR. The Air Quality Index (AQI) had hit ‘severe-plus’ levels earlier this week, necessitating the implementation of Stage 4 of the Graded Response Action Plan (GRAP), which bans truck entry and temporarily halts construction at public projects.