Police arrested Abbas, joint secretary of Sir AF Rahman Hall unit BCL, on February 17 as a suspect in a string of blasts during a Valentine's Day programme near the TSC.

The leaders of the BCL, student wing of main opposition Awami League, at a rally on the campus said Jatiyatabadi Chhatra Dal (JCD) forced police to arrest Abbas.

They alleged the arrests of Abbas and other leaders have been made to shift the responsibility for the blasts to the BCL leaders.

They said Abbas' honours final year examination is on and his next exam is on February 22, and demanded his release immediately.

BCL President Liakat Sikder said Abbas has no link to the TSC blasts and his arrest is part of a conspiracy by the JCD.