Urban settlements in India consist of:
Statutory Towns: All places with a municipality, corporation, cantonment board or notified town area committee as declared by the state law.
Census Towns: Places which meet the following criteria:
✓ a minimum population of 5,000;
✓ at least 75 per cent of male main working population engaged in non-agricultural pursuits;
✓a population density of at least 400 persons per square kilometre.
Cities:
Urban areas: with a population of at least one 100,000 (0.1 million). The others are termed as ‘Towns’.
Metropolitan Cities: Cities with a population of at least 10 100,000 (1 million).
Urban Agglomerations (UAs): Continuous urban spreads constituting a town and its adjoining urban outgrowths (OGs) or two or more physical contiguous towns together and any adjoining urban outgrowths of such towns. A UA must consist of at least one statutory town, and its total population of all constituents put together should not be less than 20,000 as enumerated in the Census of 2001.
Size Class Classification (population):
Class I: 100,000 and more
Class II: 50,000 to 99,999
Class III: 20,000 to 49,999
Class IV: 10,000 to 19,999
Class V: 5,000 to 9,999
Class VI: Less than 5,000