In a crackdown on the proscribed terror outfit Babbar Khalsa International (BKI), the National Investigation Agency (NIA) today arrested a key operative linked with designated terrorist Lakhbir Singh Sandhu. The NIA said that multi-state searches were carried out at the premises connected with 10 suspects, which led to the arrest of Jaspreet Singh from district Ferozepur in Punjab. It added that one 32-bore revolver, 69 cartridges of various bores, 100 gm heroin, 100 gm opium, 2,20,500 rupees cash and various digital devices were recovered from Jaspreet, who was found to be associated with the foreign-based terrorist Lakhbir Singh Sandhu.