Farmer Nirmal Singh and his son Gurjeet Singh, both residents of Narlie village in Tarn Taran district, went ahead of Border Security Fence with one water camphor for farming, they said.
But after a while a Kissan guard party deployed in the area found one more identical water camphor with the father- son duo, a BSF official said.
On checking the water camphor, it was found that its walls were filled with contraband heroin (about 3.6 kg) along with one Pakistani SIM card, he said.
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