Four people were arrested for their allegedly involved in leaking out question papers for assistant primary teacher recruitment test held on April 22.

A team of Rapid Action Battalion (RAB-2) arrested them from the capital and its adjoining areas on Wednesday night, said Commander Khandaker Al Moin, director (legal and media wing) of the elite force, at a press briefing on Thursday.

They made a contract of Tk 10-15 lakh with each job seeker and took at least Tk 2 lakh in advance.

The officer said the arrestees with their cohorts provided answers of their contracted people through hidden wireless spy kits.