Even as Delhi is considered to be the most polluted city in India and every year courts and governments discuss over stubble burning and vehicle emissions as the main source, surprisingly, it is not the most polluted city, at least in October 2025. The latest study by the Centre for Research on Energy and Clean Air (CREA) revealed that Delhi is ranked as the sixth most polluted city in India in October 2025, ahead of which are its neighbouring cities like Ghaziabad and Noida.

Which is the most polluted city?

CREA’s study involved factors like continuous ambient air quality monitoring data, which pointed out an alarming decline in air quality across the country, with the Indo-Gangetic Plain, particularly the National Capital Region (NCR), witnessing the sharpest declines. Among the most p

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