The Cyber Police Centre of the Criminal Investigation Department (CID) arrested the mastermind of medical and university question paper leak gang in a special raid at Banshree area of the capital on Monday.

The arrestee is identified as Abdus Salam, a machine man of Health Education Bureau.

Abdus Salam is also accused in a murder case filed with Singair Police Station in Manikganj district in 2014.

ASM Ashraful Alam, superintendent of Police in CID, confirmed the matter, adding that the details of the arrestee will be revealed at a press conference on Tuesday noon.