The Global City is a new paradigm in the development of cities in the globalization era. World cities are world cities that lead to the circulation of capital and information, and are only focused on cities in the northern regions of the world, so that the nature of urban development is more focused on macroeconomic expansion which is space to encourage everyone to make transactions in the open market. This global city offers a space for economic reflection, that the economy itself does not occur only in one region but covers the world region, where there is no subordinate relationship between first world cities and third world cities because it offers the interdependence of urban development, as already mentioned and proposed in the concept of the global city. Mumbai's growth into a Mega City is due to the booming population density which makes the area more crowded and looks slum by tourists. Mumbai itself, as the heart of India's economy, must improve to make it look clean and tidy. The traffic jams that occur can make city life stop. One of the cities in India which is considered as the largest slum area in Southeast Asia because of the weak electricity and limited water network. Cities that actually function in the national economy as collectors and redistribution of economic cycles, now have to face other cities around the world to compete with each other to achieve a massive economy for the economic development of the city. The implication that arises then is that cities no longer have to be oriented to the local or national world, but also to be oriented to the global.