Mumbai City District is a district of Maharashtra in Konkan Division. As a city district, it has no headquarters or subdivisions. It, along with the Mumbai Suburban District, makes up the metropolis of Mumbai. The city area is called the "island city" or South Mumbai or Old Mumbai. It extends from Colaba in the south to Mahim and Sion in the north. The city has an area of 157 km² and a population of 3,085,411.
The city of Bombay came in light in the year 150 A.D. through the geographical work of renowned geographer, Ptolemy. The city, consisting of several islands, was then ruled by native Agris and kolis.
These natives ruled the islands up to 1345. Thereafter, Mumbai's rulers changed through history until Islamic rulers conquered what is now Maharashtra and conquered some of the islands in 1534. Subsequently, a Muslim sultan of Gujarat took over all the islands, which were then conquered by the Portuguese.
Following the continued support of England in the Anglo-Portuguese Alliance, stemming from the Anglo-Portuguese Treaty of 1373 and on the accession of a Catholic monarch in 1660, in 1661 the island of Bombay was given to the British as part of a Royal Dowry, on the occasion of the marriage of King Charles II of England with the Portuguese Princess Infanta Catherine of Braganza. The island of Bombay, was then to remain part of British Raj until 15 August 1947, the day India celebrates annually as Indian Independence day, when it became an autonomous dominion, experiencing the dawn of independence from foreign rule see History of the Republic of India. Initially, Charles II entrusted the administration of Bombay to the East India Company.