“Neza-Chalco-Itza” of Mexico City, which is home to more than 40 lacs people, is the larget slum of the world! Most of the people living there are obviously poor & the crime rate in the area is very high due to “home of gangs” formed since 1990s. People living there practice chatholic religion & everybody pray to have a better condition of life. Crowded with people (80,000 people per square kilometre!), polluted water is the biggest problem in this place. Despite living in slum & having problems like transportation & schools, people have little joy like watching television in groups when electricity is there but they hope to exit this place! Well, we hope for the development of this area.