The mighty Chamkhar Chhu divides the villages of Shingkhar, Wamling, Thrisa, Bardo, Khomshar, Langdurbi from the villages of Radhi, Nimshong, Zangling, Thajong. The bridge over this river is a life line for the people and the bridge materials have been transported on foot from Dakpai four days on foot. Transportation is one of the major problems for the people of these remote villages.