Famously known as Khangkui Mangsor, the Khangkhui Lime Cave is a natural limestone cave that attracts tourists, archaeologists and researchers from far and wide. The cave is famous for its large sedimentary limestone formations. While some of the limestone hangs from the ceiling of the cave, some grows from the ground and it is quite fascinating to these natural formations make interesting patterns. The cave houses two large chambers and five tunnels. Finding one's way out through the dark cave makes for a thrilling experience. The cave once served as a shelter for the locals during the Second World War. Several artefacts dating back to the Palaeolithic age have been discovered during archaeological excavations carried out in and around the cave. The ancient cave is a prime tourist attraction of Manipur's Ukhrul district and lies at a distance of 95 km from Imphal.