Complex sentence: Arunachal Pradesh is a state of India in the country's northeast, bordering on Bhutan, Burma and China's Tibet, though it is under Indian administration since independence, China claims the 90,000-square-kilometre area as South Tibet.
Split into simpler sentences: Arunachal Pradesh is a state of India in the country's northeast, bordering on Bhutan, Burma and China. Though it is under Indian administration, China calls the 90,000-square-kilometre area as South Tibet.