evidence: Kabaw (Kabo) Valley :: Pix - DocNelson/Flickr [...] The Treaty of Yundabun signed on 26th February 1825 clearly shows that Kabo Valley is the rightful property of Manipur and more importantly the fact that Manipur has the right to reclaim this piece ofland. [...] The contents of the above agreement cieariy shows that Kabo Valley is an undisputed part of Manipur. Also it is stated that the state of Manipur retains the right to reclaim this part of territory in case any such circumstances arise wherein the terms of the agreement is not fulfilled.