Infrastructure is basic physical and organizational structure needed for the operation of a society. These are a set of interconnected structural elements of services and facilities that provide framework supporting an entire structure of development necessary for an economy to function.

Recommendations of the National Commission on Urbanization (NCU), set up in 1985, covered the aspects of emergence of nodal points; special regional characteristics of urban growth; spatial eco-tones of urbanization; spatial distribution of wheat and rice productivity and industrial employment; and spatial planning of settlements . Besides other analysis, it studied the spatial distribution of cities and urban agglomerations in 1971 and 1981 .