Mumbai Metropolitan Region

Mumbai Metropolitan Region (abbreviated to MMR and previously also known as Greater Bombay Metropolitan Area),^[4][5] is a metropolitan area consisting of Mumbai and its satellite towns in the northern Konkan division of Maharashtra in western India. The region has an area of 6,328 square kilometres (2,443 sq mi)^[6] and with a population of over 26 million it is among the most populous metropolitan areas in the world.^[7]

Mumbai Metropolitan Region Greater Mumbai (MMR)
Metropolis and metropolitan area
From top, left to right: Mumbai, the centre of MMR Navi Mumbai Kalyan-Dombivli Mira-Bhayandar Vasai-Virar Thane View from Matheran
Map showing the extent of MMR with its municipal corporations and councils
Country	India
State	Maharashtra
Core city	Mumbai
Districts	Mumbai City Mumbai Suburban Thane Palghar Raigad
Area
• Metro	6,328 km2 (2,443 sq mi)
Population  (2016 Census)	22,885,000
• Density	4,764/km2 (12,340/sq mi)
GDP (nominal)
• Total (2021)	US$277.980 billion[1]
GDP (PPP)
• Total (2021)	US$400 billion[2][3]
Time zone	UTC+5.30 (IST)
PINs	400 001 to 421 605
Website	mmrda.maharashtra.gov.in

Developing over a period of about 20 years, it consists of nine municipal corporations and eight smaller municipal councils. The entire area is overseen by the Mumbai Metropolitan Region Development Authority (MMRDA), a state-owned organisation in charge of town planning, development, transportation and housing in the region.

The MMRDA was formed to address challenges in planning and development of integrated infrastructure for the metropolitan region.The areas outside Brihanmumbai (Greater Mumbai) and Navi Mumbai have lacked organised development. Navi Mumbai, developed as one of the largest planned cities in the world, was promoted by a state government-owned company, City and Industrial Development Corporation (CIDCO).

The region has had problems related to haphazard and illegal development as a result of rapid urbanisation. Villages along the NH 3 in Bhiwandi are examples of haphazard developments in the MMR, with some of the largest warehousing areas in India. Government agencies such as the Town Planner and Collector of Thane have had challenges in addressing unorganised development.