In a scenario whereas the Soviet Union occupies and formally annexes Xinjiang/East Turkestan/Uyghurstan after WW2, and also one where China is politically divided between a communist, CCP-controlled north and a Kuomintang-controlled south (to ensure that neither of the two Chinas can properly object to peripheral regions getting annexed), how differently would the problems of Tibet and the partition of Kashmir play out?
Would the Soviets, like OTL China, get a slice of the Kashmiri pie in the form of Aksai Chin? If so, then how does this affect Indo-Soviet relations?
And Tibet? What sort of policy would the Soviets use in regards to the Dalai Lama's theocratic regime? Would Soviet authorities turn the other cheek to Tibetan communists hiding in southern Xinjiang? And, again, how would India react depending on what course of action the Soviet Union chooses involving Tibet? If the Soviets decide to be aggressive towards Tibet, could they end up supporting India's claim to Arunachal Pradesh to keep them sweet?