Panchgaon is India's most polluted city on Thursday (November 12), with an AQI of 388, according to the Central Pollution Control Board. Delhi follows at 350, ahead of Bahadurgarh (346), Bhiwadi (339), and Ghaziabad and Manesar (338 each). Of the 20 most polluted cities, 18 registered 'very poor' air quality, while Fatehabad and Gajraula were in the 'poor' category.