PESHIN, or PISHIN  , a district of Baluchistan . Area 2717 sq. m . Pop . (19o1), 50,200 . It consists of a large plain surrounded on three sides by hills, which formerly belonged to Afghanistan but was ceded to the British by the treaty of Gandamak in 1879 . This plain is of considerable strategic importance, as it forms the focus of a great number of routes leading from Sind and the Punjab frontier districts to Kandahar, and is intersected by the Sind-Peshin railway . The agricultural wealth of Peshin, and consequently its revenues, have increased greatly under British administration .