Mumbai faces a large slum problem.
The water that they do have access to in the slums is often polluted.
Here in Mumbai, they seem to have a bit of a problem with their urban development. Particularly, they have had a problem with slums. Since 1950, the number of slums has risen dramatically, most of which is due to Mumbai's rising population. Before 1950, slums were mostly around mills, and the health problems of these people were generally ignored by head policymakers. From 1950 to 1968, the amount of slums increased by 18 percent, and by 1980 slum dwellers made up half of the city's population. Today, about 60 percent of Mumbai's 17 million people is made of of slum dwellers. The people in these slums live in horrible conditions. They often have to face issues like lack of water, constant migration., pollution, lack of public transportation, and housing shortages. Also, the rate of infant mortally in Mumbai is very high, and the hospital they have there are often overcrowded. Most people in the slums have to rely on private doctors that do not have any formal training or qualifications, or they have to go without medical care. Slums can also be knee deep in water when the monsoon season comes, making the risk of water-born diseases even greater than it is normally.
Sources:
http://www.macalester.edu/courses/GEOG61/espencer/slums.html
http://www.mumbai77.com/pages/mumbai-slums/
Picture Sources:
http://static.panoramio.com/photos/original/1526900.jpg
http://media.nowpublic.net/images//06/2/0620e25f3288c7ee4a9feb28ee406975.jpg