Faisalabad (pronunciation: /fɑːɪsɑːlˌbɑːd/; Lyallpur until 1979) is a city in the Punjab province of eastern Pakistan, and was one of the first planned cities within British India. It is the third most populated metropolitan area after Karachi and Lahore. The total area of Faisalabad District covers 58.56 km² (22.61 sq mi) while the area controlled by the Faisalabad Development Authority (FDA) is 1,280 km² (490 sq mi). Faisalabad has grown to become a major industrial and distribution center 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 Pakitan's annual GDP. Faisalabad's average annual GDP is $20.55 billion (USD), of which 21% comes from agriculture.