Delhi pollution after Diwali worsens as thick smog blankets the capital. AQI stands at 366, while 15 monitoring stations record severe air quality. GRAP Stage III restrictions remain in force across Delhi-NCR. Delhi’s AQI stood at 366 on Monday morning, keeping the capital in the ‘very poor’ air quality category after Diwali.Fifteen monitoring stations recorded severe pollution, with Sonia Vihar registering an AQI of 449 in the 7 am snapshot.