The largest Pakistani city is Karachi, which has a population of over 15 million people. It is the capital of the Sindh province and is located on the coast of the Arabian Sea. It is the country's primary seaport and financial center, and is home to many industries, including textiles, pharmaceuticals, steel, and automobiles. Karachi is also known for its vibrant culture, with a variety of festivals and events taking place throughout the year.