Apart from various types of ammunition, several foreign and Indian made firearms and explosives were also seized during the joint operation at the residence of a close aide and relative of suspended Trinamool Congress leader Sheikh Shahjahan.

Sources said that during the operation, the CBI also recovered some documents, including some purchase bills from the ammunition shop, following which the CBI reached the Kolkata police station from where the seized bullets and cartridges were allegedly purchased. Were.

Shahjahan is reportedly named as the buyer in the bills. The CBI is not trying to find out who had gone to the ammunition shop to purchase the items.

Sources said the CBI is also 'surprised' by the recovery of imported firearms, as buying or selling of such items is not allowed in private markets in India. Three such revolvers and one pistol were recovered during the search operation on Friday.

The CBI also seized a Colt official police revolver from the house in Sandeshkhali on Friday.