The Bhaktinagar police arrested a youth with narcotic injections and banned cough syrup in Siliguri late Thursday night.
The arrest was made during a late-night operation on the city’s eastern bypass after police received a tip-off.
A police source said police officials in plainclothes stopped a youth riding a scooter. A bag in the vehicle was searched and 145 vials of narcotic injections and 15 bottles of cough syrup were found, the source said.
Jagabandhu Roy, 27, a resident of Cooch Behar, was taken into custody.
Police said Roy had come to Siliguri from Cooch Behar with the intention of distributing the consignment.
“We had received a specific information and planned to act immediately. The recovery was significant and the matter is being investigated now,” said an officer involved in the operation.
Police have registered a case against Roy under the NDPS Act. Investigators are now trying to trace the source of the drugs and identify the network involved in the supply chain, a source said.
“Siliguri police have stepped up surveillance on the movement of drugs in the city, especially through vehicles coming from neighbouring districts,” sources said.
Officials said Thursday’s seizure shows that despite the crackdown, small consignments of contraband are still making their way into the city.
“The trade is now moving to less obvious routes, where two-wheelers and small vehicles are being used. That is why such seizures are important,” a police official said.
Police said further raids would be conducted to curb the drug trade.
