The ranking features cities from Haryana, Uttar Pradesh and Punjab, with AQI readings ranging from 560 to 726. Rohtak topped the most polluted cities list on November 2 with an AQI of 440. Check the top 10 cities, including Ghaziabad, Bathinda, Dhanbad and Greater Noida. Top 10 Most Polluted Indian Cities Today: Air pollution has reached alarming levels across several cities in northern India, with towns in Haryana, Uttar Pradesh and Punjab.