is the capital of the Pakistani province of Sindh. It is the most populous city in Pakistan, and fifth-most-populous city proper in the world. Ranked as a beta-global city, the city is Pakistan's premier industrial and financial centre. It is the cultural, economic, philanthropic, educational, and political hub of the country, and Pakistan's most cosmopolitan city. Situated on the Arabian Sea, Karachi serves as a transport hub, and is home to Pakistan's two largest seaports, the Port of Karachi and Port Bin Qasim, as well as Pakistan's busiest airport, Jinnah International Airport.