Karachi is the largest city, main seaport and financial centre of
Pakistan, as well as the capital of the province of Sindh. The city has an
estimated population of 21 million people as of April 2012. Results in that
census show that the district is home to over 21 million people, at a density
of nearly 6,000 people per square kilometre (15,500 per square mile). Karachi is
the most populous city in the country, is the world's largest city in terms of
population and also the 11th largest urban agglomeration in the world. It is
Pakistan's centre of banking, industry, economic activity and trade and is home
to
