KARACHI: PPP Chairman Bilawal Bhutto Zardari has expressed concern over the federal government's decision to cut off Sui gas supply to Karachi's industries. Bilawal Bhutto Zardari expressed concern over the cut off of gas supply to industries in Karachi by the federal government and said that by stopping the supply of Sui gas, Imran Khan has dealt another blow to the national economy. Gas supply to Karachi industrialists is being cut off only. Chairman PPP said that Sui is the first right of Balochistan and Sindh to produce gas constitutionally. Imran Khan put the country's exports and the reputation of industrialists at stake by stopping the supply of gas.