The data released by the Central Pollution Control Board shows that air pollution levels in India have worsened in 2022. Katihar in Bihar had the highest AQI (Air Quality Index) of 360 among 163 Indian cities. On November 7, the Central Pollution Control Board data revealed that Delhi's AQI stood at 354, Noida's stood at 328 and Ghaziabad's stood at 304. Ballabgarh, Begusarai (Bihar), Kaithal, Faridabad, Gurugram in Haryana and Gwalior in Madhya Pradesh are also among the most polluted cities, reported NDTV. Watch the video to know more.