My city Mumbai, which is also the dream city of many people was earlier known as Bombay. The city is a hub of entertainment and is warm and welcoming to everyone. It is a megacity and is also the capital of Maharashtra. It is the most populated city in India and is the ninth biggest city in the world. The population of Mumbai is 18.4 Million. Mumbai was also named as the Alpha World City in the year 2008. Being the wealthiest city in India it also has the highest GDP. It also has the most numbers of Millionaires and Billionaires of the country. Mumbai is made of the seven islands, which was home to Koli people, who were the fishermen. The city has a major seaport at the Arabian Sea. The seven islands came together and formed the biggest city of the country – Mumbai.