An urban agglomeration is defined as "a continuous urban spread constituting a town and its adjoining outgrowths, or two or more physically contiguous towns together with or without outgrowths of such towns". An urban agglomeration must consist of at least a statutory town and its total population (i.e. all the constituents put together) should not be less than 20,000.
Below is a list of urban agglomerations in the state of Tamil Nadu, with a population of 1 lakh and above based on the 2011 census of India. [1] Cities in bold are declared Municipal corporations.
Tiruchirappalli (Tamil: திருச்சிராப்பள்ளி, also called Tiruchi or Trichy, is a city in the Indian state of Tamil Nadu and the administrative headquarters of Tiruchirapalli District. It is the fourth largest municipal corporation in Tamil Nadu and also the fourth largest urban agglomeration in the state. It is located almost at the geographic centre of the state.
The Madurai Metropolitan Area, is the 31st largest metropolitan area in India and is the third largest metropolitan area in the state of Tamil Nadu only next to Chennai, and Coimbatore.The Madurai Metropolitan Area consists of the city of Madurai and its suburbs in Madurai district.