Faisalabad is the third-most-populous city in Pakistan, and the second-largest in the eastern province of Punjab. Historically one of the first planned cities within British India, it has long since developed into a cosmopolitan metropolis. Faisalabad was restructured into city district status; a devolution promulgated by the 2001 local government ordinance. The total area of Faisalabad District is 58.56 km2 while the area controlled by the Faisalabad Development Authority is 1,280 km2. Faisalabad has grown to become a major industrial and distribution centre because of its central location in the region and connecting roads, rails, and air transportation. It has been referred to as the "Manchester of Pakistan" because it contributes over 20% toward Pakistan's annual GDP. Faisalabad's average annual GDP is $20.55 billion, of which 21% comes from agriculture.