Mizanur Rahman, finance secretary of SCF and a fourth year student of sociology, was undergoing treatment at Chittagong Medical College and Hospital (CMCH).

Witnesses said a group of Shibir activists reportedly led by Suhrawardy Hall unit President Sayeed beat Mizanur without any provocation when he was taking breakfast at the hall canteen at around 9:15am.

The Proctor's office advised him to get treatment from CU Medical Centre, but the SCF leaders got him admitted to CMCH in the city fearing further attack by shibir men at the centre, sources said.

SCF President Kanchan Sarker and General Secretary Zamir Uddin Russel in a joint statement condemned the attack and demanded exemplary punishment to those involved in it.

With this incident, the shibir activists made three attacks on the leaders of Bangladesh Chhatra League (BCL), Bangladesh Chhatra Union (BCU) and SCF in last five months.

In one attack on December 24 last year, the shibir cadres injured 30 activists of BCL, BCU and SCF at different points on the campus.

A photojournalist was also injured in the attack.

In another attack on April 9, BCL leader Naimul Islam Nishat was injured.

Sources said the shibir activists are making attacks repeatedly to create panic among the supporters of other organisations in a bid to establish their supremacy in different dormitories and on the campus.