Mamdot | Vigilant jawans of BSF's 182 Battalion recovered two and a half kilos of heroin thrown from Pakistani drone on the intervening night of Sunday-Monday. BSF officials told that at 12 o'clock in the night, when the jawans were patrolling in the LS wala check post area, then the echo of the drone was heard. After some time, the sound of something falling was heard in a field on the outskirts of the border village of Sethan Wala. During the search, 3 packets of heroin, 2 sparkling balls and a bright blue LED bulb with batteries were recovered. To whom the consignment of heroin was to be delivered, the investigation is on.