Prahlad Mishra, Lichari Sharma and Amar Baundyal were arrested by the STF on a tip-off from Kamal crossing in Pallia area of Kheri district last night, STF officials said.
STF also recovered 40 kg of refined Charas, driving licences valid in Nepal, they said.
Mishra has confessed his involvement in smuggling during the interrogation, they said.
