Unionised teachers, lousy management, and unruly students have all but led to a demise of quality higher education in Marxist-ruled West Bengal. And nemesis finally caught up with Presidency College, the Calcutta-based struggling centre of excellence, last week. The alleged molestation of a girl by a senior teacher and an agitation by a small group of students to roll back the price of inexpensive admission forms lit the fuse. It led to some nasty muck-raking, a shoddy cover-up attempt by a typically slothful administration, a night-long students' gherao of the principal, a six-hour blockade of the grimy potholed street on which the college is located and finally a desperate nine-hour shutdown of the college.