Figure 8.21: FIGURE 8.21 PHOTO ESSAY: Urbanization in South AsiaWhile only 30 percent of South Asia’s population is urban, the region is home to some of the world’s largest cities, such as Mumbai, Delhi, Dhaka, Kolkata, and Karachi. Throughout the area, between 50 and 90 percent of the urban population live in slums plagued by shoddy construction and inadequate access to water and sanitation.