India is urbanising rapidly and massively due to; rapid increase in population, uncontrolled migration of people from rural to urban areas and from small to large urban areas; large investments being made in urban housing, increasing capacity of road network, accelerating urban transport, ensuring universal water supply, improving power-related infrastructures; promoting mission related to smart cities, and focussing on rapid urban growth, development and expansion of cities. Historically, number of urban centres and cities have also increased numerically and physically, though not proportionately, when compared with the increase in the urban population. Majority of increase in population is getting localised in the existing towns/cities, leading to increase in density and causing high degree of concentration and congestion