Delhi’s winter months typically see worsening air quality, prompting the phased implementation of Grap, which has four stages based on AQI levels. Stage 1 applies to “poor” air (AQI 201-300 ...

Environmental advocates and public health experts criticised the apparent delay in implementing Stage-3 of the Graded Response Action Plan (GRAP), arguing that the Commission for Air Quality ...

Delhi-NCR reimposes Stage-I GRAP measures as the Air Quality Index (AQI) deteriorates, reaching the 'Poor' category at 209. The CAQM's decision prompts stricter monitoring, enhanced dust ...

It has been implemented in Delhi-NCR for the seventh time this year. GRAP's stage I was in force for the entire winter season (2024-25), with the CAQM lifting it finally on March 3.