India presently uses multiple definitions to classify its urban centers. The first and most prominent definition is the one by the Census of India. It classifies towns in two categories, one based on legal statute and other on a mix of population size and economic functions. All places with a municipality, corporation, cantonment board or notified town area committee are termed as statutory towns. All other places with a minimum population of 5,000, at least 75 per cent of the male main working population engaged in non-agricultural pursuits and a density of population of at least 400 persons per sq. km are termed as census towns.