<P> As home to Pakistan's largest ports and a large portion of its manufacturing base, Karachi contributes a large share of Pakistan's collected tax revenue . As most of Pakistan's large multinational corporations are based in Karachi, income taxes are paid in the city even though income may be generated from other parts of the country . As home to the country's two largest ports, Pakistani customs officials collect the bulk of federal duty and tariffs at Karachi's ports, even if those imports are destined for one of Pakistan's other provinces . Approximately 25% of Pakistan's national revenue is generated in Karachi . </P> <P> According to the Federal Board of Revenue's 2006--2007 year book, tax and customs units in Karachi were responsible for 46.75% of direct taxes, 33.65% of federal excise tax, and 23.38% of domestic sales tax . Karachi accounts for 75.14% of customs duty and 79% of sales tax on imports, and collects 53.38% of the total collections of the Federal Board of Revenue, of which 53.33% are customs duty and sales tax on imports . </P> <P> Karachi is the most linguistically, ethnically, and religiously diverse city in Pakistan . The city is a melting pot of ethno - linguistic groups from throughout Pakistan, as well as migrants from other parts of Asia . The city's inhabitants are referred to by the demonym Karachiite . The 2017 census numerated Karachi's population to be 14,910,352, having grown 2.49% per year since the 1998 census, which had listed Karachi's population at approximately 9.3 million . </P> <P> At the end of the 19th century, Karachi had an estimated population of 105,000 . By the dawn of Pakistan's independence in 1947, the city had an estimated population of 400,000 . The city's population grew dramatically with the arrival of hundreds of thousands of Muslim refugees from the newly independent Republic of India . Rapid economic growth following independence attracted further migrants from throughout Pakistan and South Asia . The 2017 census numerated Karachi's population to be 14,910,352, having grown 2.49% per year since the 1998 census, which had listed Karachi's population at approximately 9.3 million . </P>

Karachi the largest city of pakistan has a population of about
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