The authorities, however, served show cause notices to most of the students found to have submitted faulty admission papers and suspended five DU staff for their involvement in the admission forgery.

In its first report on March 15, a probe committee headed by Pro-Vice Chancellor Prof AFM Yusuf Haider recommended legal actions against a number of suspects that the committee found involved with the admission forgery racket.

Following the recommendation, DU authorities sent a letter to the inspector general of police (IGP) requesting for legal actions against the suspects and the IGP issued a letter to Dhaka Metropolitan Police (DMP) commissioner for necessary steps in this regard, sources said.

The university authorities' also sent to the police a few lists containing the names of several DU staff, a few coaching centres and consultancy firms on the basis of findings of the probe committee.

The university authorities did not file any case with the concerned police station, DMP Commissioner Naim Ahmed said, adding, "For the legal process, the authorities have to file cases first, otherwise police cannot take any action. Making a request is not enough."

The latest and fourth report of the DU probe committee reiterated the need for legal steps against the suspects, Prof Yusuf Haider said.

"The probe committee strongly feels the need for arrest of those suspects, as they might excerpt important information about the admission forgery nexus," a member of the committee said.

Sources said the university authorities can at best suspend a staff or cancel the admission of a student if the probe committee finds someone of university family involved with the fraudulent practice.

Besides, it has nothing to do with the outsiders and so, the suspects should be brought to justice.

DU Vice-chancellor Prof SMA Faiz said if the police think filing a case is needed for legal actions against the suspects, the Syndicate will take a decision in this regard.

When asked about the delay in the process, he said, "There is nothing to hurry. We are working sincerely."

In the wake of allegations of inconsistencies in admission papers of 11 students of 2004-2005 sessions of public administration department, the probe committee was formed on October 10, 2006.

The committee so far detected a total of 168 students of different sessions at different departments of social sciences and arts faculties and a few institutes.

In its fourth meeting on Tuesday, the committee detected 92 fake students, mostly from the Department of International Relations. It also found involvement of two consultancy firms with the admission forgery.

The committee is to submit its report to the university authorities today for official declaration by the Syndicate, the university's highest decision-making body.

The next meeting of the Syndicate will be held on June 5.