Police arrested an associate of top terrorist Mohsin along with huge arms and ammunition from Pallabi area in the capital on Friday night. Police also seized one foreign sophisticated pistol, two rounds of bullet, ten crude bombs, one kilogram of gun powder and other bomb making materials from his possession. The arrested was identified as Md Hossaien , who is the second- in- command of listed top terrorist Mohsin, who is currently living in India and leading an notorious  under world group from there, said Inspector Dadon Fakir, officer- in charge of Pallabi Police Station. These groups first collect phone numbers of the targeted persons and then send the numbers to their boss Mohsin. Later he demand extortion over phone, if their demand is not met, they shot, even killed many people only for extortion in the area, the police official claimed. A case was filed against Hossaien in this connection, Inspector Dadon said.