Inspector General of BSF, Punjab Frontier, Anil Agarwal said the force's personnel noticed smugglers throwing packets of the contraband near the check-post in the wee hours.
The smugglers opened fire when the jawans challenged them and fled the spot when the personnel retaliated in self-defence, he said.
Besides ten packets of heroin, weighing one kg each, the jawans recovered four pistols, seven magazines, 95 cartridges upon searching the spot, Agarwal said.
