Karachi which is capital of Sindh province of Pakistan is the most populated city of country and third most populated city in the world. It is the premier financial and industrial centre of Pakistan. It is also most cosmopolitan city of country and is situated on the Arabian Sea. It is the home to two of Pakistan largest seaports and serves as transportation hub. It also carries the busiest airport in Pakistan. This city was founded in 1729 as the fortified village of Kolachi. In 19th century with the arrival of British East India Company the city was transformed into the major seaport and was also connected with extensive railway network. At the time of inception of Pakistan, it was the largest city in Sindh with a population of 400,000. After the independence of Pakistan hundreds of thousands of Muslic refugees moved to this city from India and the population of the country increased dramatically. The city experienced very fast economic growth after independence and attracted the migrants from South Asia and throughout the country. Religiously, Linguistically and ethnically it is one of the most diverse city of Pakistan and have a total population of 14.9 million according to 2017 census of Pakistan. It is one of the fastest growing cities and is the 6th most populated metropolitan area. It is home to over 1 million Afghan refugees, 2 million Bangladeshi immigrants.
Now it is the premier financial and industrial centre of Pakistan and the city has a formal economy of estimated worth $113 billion as of 2014. It collects almost third of Pakistan's whole tax revenue and generates almost twentry percent of Pakistan's GDP. The ports of this city handles almost 95% of foreign trade and almost 30% of Pakistan's industrial output is from Karachi. Most of the headquarters of multinational companies working in Pakistan are operating in Karachi. It is also known as the City of Lights due to its vibrant nightlife. Since the Pakistan's independence the Karachi is the commercial and financial capital of Pakistan. This city has been the centre of nation's economy.