Urban areas are extremely complicated environmental settings, where health and well-being of an individual and population govern by a large number of bio-physical, socio-economical, and inclusive aspects. Featuring speedy growth and development, the urban areas of developing nations are confronting with burgeoning population. Urban environment is increasingly under pressure with the shortage in housing provision. A significant urban population resides in slums. Unsafe, unsecure, and unsanitary living conditions; lack of basic services; and exclusion from participation in developmental process continue to worsen the health and economic productivity of urban poor who could not afford formal housing. These informal settlers or slum dwellers are both medium and sufferer of environmental degradation. Inevitable parts of the cities as well as urban environment, the slums are one of the major challenges for urban environment planning and management. These vulnerable entities are anthropogenic environmental problem for the city in general and specifically for its inhabitants.