The term has traditionally referred to housing areas that were once relatively affluent but which deteriorated as the original dwellers moved on to newer and better parts of the city, but has come to include the vast informal settlements found in cities in the developing world.[4]
Although their characteristics vary between geographic regions, they are usually inhabited by the very poor or socially disadvantaged. Slum buildings vary from simple shacks to permanent and well-maintained structures. Most slums lack clean water, electricity, sanitation and other basic services.[4]
The rising phenomenon of slum tourism has western tourists paying to take guided tours of slums. This tourism niche is operating in almost all major slums around the world, including in Mumbai, Rio de Janeiro, Kibera, and Jakarta.[5]
THE BIRTH OF SLUMS
Historically, slums have grown in Bombay as a response to a growth of population far beyond the capacity of existing housing. Migrants are normally drawn to the city by the huge disparity between urban and rural income levels. Usually the residents of these densely populated enclaves live close to their place of work. The residential area itself does not provide employment.
Bombay knows another reason for the formation of slums. As the city grew, it took over land that was traditionally used for other purposes. The Koli fishermen were displaced during the development of the harbour