Ranking of India's top biggest cities with population. According to United Nations population estimates,, Delhi might become the most populous city by 2028. Delhi is the most populated city in India. Delhi's NCR, urban area is now considered beyond the NCT boundaries,
that includes the neighbouring satellite cities of Ghaziabad, Faridabad, Gurgaon and Noida in an area now called National Capital Region (NCR) and had an estimated 2020 population of over 30 million people including of which which is NCR 20 Million and other 10 million of neighbourhood cities. The below table are the list of cities in India by population in 2020 as per UN.