Chandigarh, Aug. 10 -- As many as 286 vehicles were challaned and nine were impounded during a special operation - OPS Seal-XVIII - across the state on Saturday, officials said. The drive, aimed at checking the vehicles entering or exiting the state to keep vigil around anti-social elements, drug traffickers and bootleggers, saw 2,464 vehicles being inspected. During the operation that was conducted from 11 am to 2 pm simultaneously in all districts on the directions of Punjab DGP Gaurav Yadav, the SSPs of border districts were directed to hold joint checkpoints at strategic places. Sharing details, special DGP (Law and Order) Arpit Shukla said the nakas involving over 600 police personnel were set up on at least 71 entry/exit points of 10 districts, which share boundaries with four border states and the UT of Chandigarh. Police teams also lodged four FIRs and arrested nine persons, he said. Besides, the cordon and search operation against drugs continued on the 161st day during which raids were conducted at 403 locations on Saturday, leading to the arrest of 87 drug smugglers after registration of 57 FIRs across the state. The special DGP said the raids resulted in recovery of 2.2 kg heroin and 2.1 kg opium.HTC...