Another crude bomb exploded in the Teacher-Student Centre (TSC) area of Dhaka University (DU) on Monday evening.
The explosion took place around 6:40pm, witnesses said.
Immediately after the blast, activists of the DU unit of Jatiyatabadi Chhatra Dal (JCD) detained two suspects and handed them over to police.
"As soon as the crude bomb exploded with a loud bang at the TSC, we rushed to the spot and detained one person from the scene and another near the gate adjacent to Suhrawardy Udyan. We then took them to Shahbagh Police Station," a JCD activist said.
Sub-Inspector Mainul Islam said the two detainees were at the police station.
A bag containing more crude bombs was also found at the scene, he said, adding that police had cordoned off the area and were waiting for a bomb disposal unit to arrive.
At least seven crude bombs exploded at different locations on the DU campus on Sunday. JCD activists also detained three people and handed them over to police in connection with those incidents.