Delhi is the third largest metropolis by area, the capital city of Hindustan, and the largest metropolis in the country. It is the 9th largest metropolis in the world in terms of population with 17.6 million people living there. At least 24.5 million people live in the Greater National Capital Region (the official name for the city). It also includes other smaller cities including the Noida, Greater Noida, Ghaziabad, Gurgaon, and Faridabad along with smaller nearby towns.