Islamabad [Pakistan], April 27 (ANI): Incarnated former prime minister Imran Khan’s Pakistan Tehreek-e-Insaf (PTI) party held nationwide protests on Friday against alleged rigging and vote fraud in by-polls held on April 21 amid reports of a police crackdown on the party’s activists in parts of Punjab, Geo News reported. Further, the party has demanded the release of Imran Khan. According to PTI, Punjab police have apprehended numerous activists and carried out raids at their houses and offices to thwart their protest, as per Geo News. Despite this, PTI supporters convened protest gatherings i…