Police have solved the rocket-propelled grenade (RPG) attack case which was carried out at a police station in Tarn Taran, Punjab DGP Gaurav Yadav said on Friday.
"A 70 mm-caliber RPG 26 was used, which was...sourced from across the border in a consignment," he added.
The mastermind behind the attack, Lakhbir Singh Landa, is a Canada-based wanted terrorist, Yadav said.