Patna, historically known as Pāṭaliputra, is the capital and largest city of the Indian state of Bihar. According to the United Nations, as of 2018, Patna had a population of 2.35 million, making it the 19th largest city in India. From Wikipedia
Latest data reveals no major improvement in air quality across 11 metropolitan areas, with hotspots like Delhi and Mumbai showing dangerously high particulate pollution levels year-round.
