Chandigarh, Sept. 22 -- City's government schools are continuing to plug the shortage of postgraduate teachers (PGTs) andlecturers through contractual and guest appointments, even as 129 sanctioned PGTposts remain vacant and the administration has sought creation of 186 additional posts from the ministry of education. The extent of the gap becomes apparent at theschool level, where the requirement is not simply for teachers in numbers but for subject-specific lecturers for Classes 11and 12.P2...