In a breakthrough against cross border terror networks, Counter Intelligence (CI) Jalandhar, in a joint operation with Nawanshahr police, has busted an ISI-sponsored Babbar Khalsa International (BKI) terror module being operated by foreign-based handlers with the arrest of a key operative, said Punjab Director General of Police (DGP) Gaurav Yadav in Jalandhar on Monday.The accused has been identified as Lakhwinder Singh alias Jola, a resident of Bairsian village in Nawanshahr. An 86-P hand grenade was recovered from his possession.The DGP said preliminary investigation has revealed that the accused had allegedly procured a consignment containing a hand grenade from a Dead Letter Box (DLB) near Adampur in Jalandhar, on the directions of foreign-based handlers.Sharing operational details, he said acting swiftly on reliable inputs, police teams arrested Lakhwinder.Further investigation is underway to expose the complete terror network, including foreign handlers, local support networks and forward and backward linkages, he added.An FIR has been registered under Sections 113(1) and 113(3) of the Bharatiya Nyaya Sanhita (BNS), and Sections 4 and 5 of the Explosive Substances Act at Sadar Nawanshahr police station.