ISLAMABAD, June28(ABC): Former PTI member Ayesha Gulalai has written a letter to Chief Justice of Pakistan (CJP) Umar Ata Bandial against PTI Chairman Imran Khan, asking the party be banned for its “campaign against institutions”. “Former prime minister Imran Khan is levelling baseless allegations against [the] country’s institutions, including [the] Pakistan Army as he wants a civil war by dragging …