Locally called as the Khangkhui Mangsor, the Khangkhui Cave is a natural limestone cave. Visiting the place, one could see the large sedimentary limestone formations. What makes the cave more interesting are the formed limestones where some appears to be hanging from the ceiling while some growing from the ground offering a very surreal experience. The cave comprises two large chambers and five tunnels. What keeps the visitors excited inside the cave is finding the way out through the darkness of the caves which is a mystical and unique experience in itself which grabs the attention of the visitors and the curiosity. Not just this but the Khangkhui Cave was even used as a shelter by the local people during World War II. Also, the archaeologists have discovered important artefacts in and around the cave, that dates back to the Palaeolithic culture.