Grade issue

Recently we have been watching several incidents related to grade discrimination. Students who passed SSC & HSC in 2001 & 2003 are now blocking roads and vandalizing vehicles. Why do the general students have to take this kind of steps? Why are they victmised? As a general student, I want this problem to be solved immediately. I would like to draw the authorities' attention in this regard and expect them to be more concerned about this matter.
We want grading equality both at intermediate & university level.