List of million-plus urban agglomerations in India

India is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people. India consists of twenty-nine states and seven union territories. It is a home to 17.5 percent of the world's population.

The first population census in British India was conducted in 1872. Since 1951, a census has been carried out every 10 years. The census in India is carried out by the Office of the Registrar General and Census Commissioner under the Ministry of Home Affairs, and is one of the largest administrative tasks conducted by a federal government.

The latest population figures are based on data from the 2011 census of India. India has 641,000 inhabited villages and 72.2 percent of the total population reside in these rural areas. Of them 145,000 villages have population size of 500–999 persons; 130,000 villages have population size of 1000–1999 and 128,000 villages have population size of 200–499. There are 3,961 villages that have a population of 10,000 persons or more. India's 27.8 percent urban population lives in more than 5,100 towns and over 380 urban agglomerations. In the decade of 1991–2001, migration to major cities caused rapid increase in urban population. The number of Indians living in urban areas has grown by 31.2% between 1991 and 2001. Yet, in 2001, over 70% lived in rural areas. According to the 2001 census, there were 27 million-plus cities in India, with Mumbai, Delhi, Kolkata, and Chennai being the largest.

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