The stakes are high for China to pull off a trouble-free summit, its highest profile event of the year, as it looks to cement its standing as a global power and avoid acrimony over issues like the South China Sea territorial dispute. Prime Minister Narendra Modi today flew into this Chinese city for the crucial G20 summit and talks with top world leaders, including one with Chinese President Xi Jinping on irritants in bilateral ties like India's Nuclear Suppliers Group or NSG bid and the China-Pakistan Economic Corridor, which runs through PoK.