JI plans countrywide strike from 28th against power tariffs - JI demands govt to renegotiate agreements with IPPs - JI also opposes Operation Azm-e-Istehkam - JI to protest nationwide against inflation, electricity overbilling - Hafiz Naeem takes oath as JI chief, announces anti-government movement - ECP issues victory notification of JI's Hafiz Naeem despite 'forfeiting' PS-129 seat - JUI-F, JI boycott presidential election