Locals blocked the Indo-Bhutan SAARC road near Kanthalguri Tea Garden area and Chaimurchi in Jalpaiguri district since 6 AM demanding availability of drinking water, they said.
Dhupguri Block Development Officer Soumen Dutraj told PTI the locals were being requested to lift the blockade.
Arrangements were being made to send additional policemen to the spot, he said.
Besides goods-laden trucks, businessmen and tourists bound for Bhutan, students and daily commuters who travel to Banrhat, Birpara and Binnaguri were affected.
Dutraj said although a water pump had been installed to solve the drinking water problem, it could not be operated due to erratic power supply in the area.
Due to its geographical position, land-locked Bhutan has to depend on the road network of Jalpaiguri for supply of goods and tourist inflow.