evidence: China needs Aksai Chin in order to connect Tibet to its Xinjiang province. [...] China, much like Arunachal Pradesh, lays an ‘ancient claim’ to Aksai Chin. [...] India Today quoted historian Ramchandra Guha as writing in his book India After Gandhi, "No official Chinese maps showed Aksai Chin as part of China before the 1920s, and a Sinkiang (Xinjiang) map of the 1930s showed the Kunlun (the mountains) rather than the Karakoram (range) to have been the customary boundary - which had been the Indian claim all along."