Confirming the arrest and seizure of the contraband, District Excise Superintendent Keshav Kumar Jha said acting on a tip off, a team was constituted to nab the smugglers.
The persons were arrested from Lakshmipur excise check post in Raxaul town of the district late last night, he said, adding officials recovered one kg of charas from each of the three smugglers.
The arrested have been identified as Akhilesh Kumar, Saddam Hussain and Mohammad Saheb Ansari, all residents of East Champaran district, Jha said.