Kamathipura is Mumbai's oldest the world's largest red-light district. The area was set up by the British for their troops, which acted as their official "comfort zone". This small region boasted the most exotic consorts. In the 19th and early 20th centuries, a large number of women and girls from continental Europe and Japan were trafficked into Kamathipura, where they worked as prostitutes servicing both British soldiers and local Indian men. When the British left India, the Indian sex workers took over. In recent decades, large numbers of Nepalese women and girls have also been trafficked into the district as sex workers. Today, it is said that there are so many brothels in the area, that there is no space for the sex workers to sit in. They hang around in the streets, solicit customers and then rent an available bed.
http://en.wikipedia.org/wiki/Kamathipura

Kumbharwada: Kumbhar means a potter in many Indian languages and wada means an area.