PESHAWAR: Former Defence Minister Pervez Khattak has resigned from the chairmanship and membership of Pakistan Tehreek-e-Insaf (PTI) parliamentarians. Pervez Khattak submitted his resignation to the Central Executive Committee through the General Secretary. He resigned from both the chairmanship and membership of the party. Pervez Khattak has said in his resignation that he is resigning due to health problems and cannot