Eight monitoring stations recorded ‘poor’ air above 200 on Monday morning, with Bandra East the worst at 265. The BMC ran mist-spraying vans in all 26 wards through the. Diwali firecrackers triggered overnight pollution spikes in Mumbai, with Navy Nagar recording an AQI of 497 and several areas crossing 400. Diwali smog pushes Delhi near severe AQI, with spikes across major Indian cities and Stage III GRAP restrictions in effect.