Delhi's air quality has deteriorated to the 'Very Poor' category just days ahead of Diwali, prompting the implementation of Stage-II of the Graded Response Action Plan (GRAP) across the NCR. With the AQI touching 278 in East Delhi's Akshardham-Anand Vihar stretch, authorities are stepping up anti-pollution measures, including road sweeping, water sprinkling, higher parking fees and additional Metro services.