Disciplinary action has been taken forcefulby the university

This is the matter of a stat university, i was a regular student there at that time and an ex student come and start abusing and physically assaulting on me, i was surprised with this event and was not able to think that what to do suddenly i pushed him and run away from that place and the place where the all event occurred was in hostel wing where i was staying about two years but after this event that ex student use there political terms and as result university discipline committee debar me for an year from the university and for complete degree from the hostel even the ex student was not appear in front of discipline committee and he dose not provide any medical report and does not complaint any report in any police station please tell me what should i do i have fill a petition in high court about this matter i Dec 2015, but university have not fill any counter yet or my Adv. are saying we are not getting chance for hearing Please help me what should i do because of money i am not able to change my Advocate.