Karachi is the largest city in Pakistan and the capital of the province of Sindh. A native of Karachi is referred to as a Karachian. Karachi is the financial and commercial hub of Pakistan and an important port in the region. The city is located on the coast of the Arabian Sea, northwest of the delta of the Indus River. It accounts for the lion's share of Pakistan's GDP and generates 65 percent of the national revenue. It is the nucleus of regional business and technological activities and has one of the highest literacy rate in the country. It is also the home of distinguished academic and research institutions. With a population that is unofficially estimated at approximately 16 million, Karachi is the most populous city of the country and one of the largest cities in the world.
