It is a continuous urban spread constituting a town and its adjoining Urban Outgrowths or two or more physically contiguous towns together and any adjoining urban outgrowths of such towns.
The geography of the town considered is defined as per the Census definition of Urban Agglomeration (where applicable), City / Town and Village.
The two exceptions to the above are Delhi and Mumbai, where some other towns have been added to these Urban Agglomerations. The reporting geography for these two cities is as follows-
Delhi - Delhi UA, Gurgaon, Noida, Faridabad and Ghaziabad
Mumbai – Mumbai UA, Vasai-Virar and Panvel