ISLAMABAD: The PTI on Tuesday issued show-cause notices to four lawmakers who reportedly went “off the grid” at the time of passage of the 26th Constitutional Amendment. The legislators who were issued notices included MNAs Zain Qureshi (NA-150, Multan), Miqdad Ali Khan (NA-86, Sargodha), Riaz Fatyana (NA-107, Toba Tek Singh) and Aslam Ghumman (NA-74, Sialkot). It may be noted Mr …