Sources said VC Prof Altaf Hossain filed the case with Rajshahi Chief Metropolitan Magistrate's (CMM) court against Prof Farukuzzaman on Thursday.

Prof Farukuzzman, who was a former director of RU Public Relations Department, is an active member of Progressive Teachers' Society, a Pro-Awami League Teachers' group on the campus.

Earlier on July 7, Prof Farukuzzaman submitted a memorandum to the UGC chairman and the education secretary demanding resignation of the vice-chancellor for his alleged irregularities.

In a faxed memorandum, Prof Farukuzzaman alleged that the VC had controversially recruited more than 500 teachers, officials and employees on political considerations by violating directives of the UGC and the ministry.

The VC also promoted a pro-Jamaat assistant registrar to the post of registrar without a meeting of the selection committee.

He also re-appointed some former deans to their posts after the expiry of their tenure without election.

In his memorandum, Prof Farukuzzaman also alleged that the VC appointed his three relatives as lecturers at the Institute of Business Administration (IBA) although there was no vacant post.

The VC also abused his power by appointing pro-Jamaat teacher Prof Nazrul Islam as a permanent professor of Education and Research Institute without any advertisement, he added.

When contacted, VC Prof Altaf admitted that he has filed a case against Prof Farukuzzman as the memorandum has tarnished his image.

When contacted, Prof Farukuzzaman said, "As a conscious man I protested VC's irregularities and corruption, and I presented the real picture of RU."

Sources said Judge Afzal Hossain of the CMM court has received the case and asked Motiher Police Station to investigate the matter and submit a report within August 19.