Some activists of Islamic University (IU) unit of Bangladesh Chhatra League (BCL) had beaten up a fellow activist over a trifling matter on Tuesday, leaving him injured.
The victim activist was identified as Jahidul Islam Zihad, a masters' student of English department.
The incident took place on the university football ground in the morning.
Later, the injured activist was taken to the university medical centre for treatment. Following the incident, activists of another group vandalised the proctor office.