Police sources said the locals blocked the arterial highway for about an hour causing massive traffic snarl.
The road blockade was preceded by injuries caused by the animal to a woman and a child in past two days, the sources said.
Though the forest department sent a cage for trapping the langur it could not be caught.
Forest officials said for tranquilising the animal with dart, villagers would have to send a formal mass petition to the top officials of the department first.