A fourth-grade employee of Hajee Mohammad Danesh Science and Technology University in Dinajpur allegedly made a derogatory remark against the vice chancellor (VC).
In protest, a group of students led by Riad Khan, a student of agriculture allegedly assaulted Jahangir Alam.
Jahangir is the president of HSTU third and fourth grade employees' union.
Protest and counter-protests have taken place on campus surrounding the incicent, turning the situation tense.
Talking to The Daily Star, Prof Fahima Khanam, dean of post-graduation faculty of HSTU, said she heard "bad remarks" made by Jahangir against the VC when she was walking past him on the campus Sunday. She informed it to university high officials, and filed a written complaint to Prof Md Fazlul Haq, registrar of the university, on Monday.
Jahangir denied the allegations. He said he was attacked by 8-10 students on campus on Sunday and Monday. Some teachers brought the matter under control, he said.
Jahangir also filed a complaint to the registrar yesterday.
Protesting the driver's remarks, Democratic Teachers Council of HSTU formed a human chain on Tuesday, accusing Jahangir of previous misconduct.
Another section of teachers under Progressive Teachers' Forum formed a human chain on campus on Wednesday, saying an opportunist group was trying to destabilise the situation at HSTU, and allowing such situation to continue would hinder the educational atmosphere of the university.
Contacted, HSTU registrar said Progressive Teachers' Forum is destabilising the campus by holding different agitation programmes. Steps will be taken against the accused driver after holding a meeting, he said on Wednesday afternoon.