BSF DIG R P S Jaswal said jawans were on high alert at Border Outpost Pulmoran in Amritsar sector following inputs regarding possibility of smuggling of heroin from across the border.
A special search operation was launched during which four packets of heroin were found at a place 150-mt from the border, he said.
The value of the heroin was estimated at Rs 20 crore in the street market, the DIG said.