The university halls were opened Friday. As usual, police remained deployed on the campus.

The campus may turn volatile again centring allowing Shibir cadre Mahbub Alam Salehi to appear at Masters final examination, recovery of bombs and firearms from the of hall room of Jatiyatabadi Chhatra Dal (JCD) cadre Shafin Ahmed and regularisation of jobs of 546 controversially appointed employees, sources said.

A section of teachers and student front of opposition parties on the campus earlier demanded resignation of the Vice Chancellor on the issue of Salehi, a student of Geology and Mining department an absconding accused wanted in connetion with the murder of a teacher of the department, S Taher Ahmed.

Salehi is president of Islami Chhatra Shibir (ICS) unit at the university.

On pressure from Shibir, the university authorities last week gave permission to Salehi to sit for examination.

Geology and Mining departmental academic committee earlier disallowed Salehi to sit for the examination on the ground of shortage of percentage in classes.

During one year, Salehi attended only one class, sources in the department said.

The Progressive Teacher's Association (PTA) in a statement last week demanded resignation of Vice-chancellor Prof Altaf Hossian for allowing Salehi to appear at the examination.

Bangladesh Chhatra League (BCL) and other left leaning student organisations also demanded resignation of the VC.

On Thursday, leaders of the student bodies met with the VC and told him that they would launch agitation if the permission is not withdrawn.

Police on June 24 recovered six powerful bombs, some bomb making materials, two revolvers, foreign wine and phensidyl from the room of Jatiyatabadi Chhatra Dal (JCD) cadre Shafin Ahmed in Nawab Abdul Latif Hall.

The haul was detected following explosion of a bomb in which Shafin was also seriously injured. Police said the bomb exploded while it was being made. Shafin is undergoing treatment in Dhaka.

Most of the JCD men belonging to its faction led by Likhon remained out of the campus to avoid arrest. Police lodged two cases after the bomb blast.

The 546 controversially appointed staff are agitating on the campus for regularisation of their jobs. They earlier threatened to launch a fresh agitation after the university reopens.

Besides, there may be violence between the two rival factions of JCD on the campus, sources said.

Proctor Prof Enamul Haque, when contacted said there is apprehension of trouble but "we are also ready to tackle such situation".