Lahore is the capital and largest city of the Pakistani province of Punjab. It is the second largest city in Pakistan, after Karachi, and 27th largest i…Lahore is the capital and largest city of the Pakistani province of Punjab. It is the second largest city in Pakistan, after Karachi, and 27th largest in the world, with a population of over 14 million. Lahore is one of Pakistan's major industrial, educational and economic hubs. It has been the historic capital and cultural center of the wider Punjab region, and is one of Pakistan's most socially liberal, progressive, and cosmopolitan cities.