The primacy of very large cities, the very wide dispersion
in city sizes, the stability of the hierarchy between cities
over decades or even centuries, and the role of urbanization in economic development are all particularly interesting qualitative features of urban structure worldwide.With the high urbanization trends, especially in the developing world, the spatial expansion of the urban built-up area and the dynamics associated with it has become a hotspot in the
research community [1-9]. The spatial expansion characteristics of urban built-up area, in order to reveal its
dynamic mechanism from socioeconomic and other aspects,
requires the thematic information of urban construction land indifferent periods. [10-12]. New Economic Geography (NEG)
models emphasize the current need for analysis in the support
for cumulative causation argument. The importance of
localization economies [13] has been observed like the jute
and textiles industries of Kolkata and Mumbai, respectively.

It is therefore urgent that we try to mitigate and adapt to the
impacts of the high rate of anticipated urbanization in India.
We need to maintain/increase our high rate of economic
growth, and at the same time we need to relook and plan
development. For a comprehensive strategy at the regional
scale that provides form for sustainable emergent systems, it is imperative to link economic planning with, spatial/regional
planning [16]. In view of this, development of a regional
urbanization strategy linked to low – carbon development
plans for cites is vital for a comprehensive look at urban
planning and service delivery. We need to diffuse the
population pressure and resultant infrastructure gridlock of our mega cities, and at the same time revitalize the small cities and towns and prepare it to absorb the wave of urbanization. It is also important to be cognizant of the land use conflicts between urban development, agricultural land, and environmentally sensitive areas. Long term comprehensive development planning must include whole urban regions and a comprehensive urban sector perspective rather than sector-bysector intervention. These should include innovative financing schemes such as public–private partnerships, domestic and foreign investments, new revenue sources through taxation reforms, levying of user charges, and new credit schemes.

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