Rivals on the border, partners on the factory floor. As Xi Jinping returns to New Delhi, India and China have pragmatic reasons to stop geopolitical distrust from derailing trade, investment and technology.

Border rivalries shouldn’t block Chinese capital, just as wartime history never stopped Japanese investment from powering East Asia.

Xi Jinpings India visit could signal a diplomatic thaw between India and China, but business ties remain stuck in a maze of investment curbs, visa delays, technology restrictions…