Although President Xi Jinping and Indian Prime Minister Narendra Modi shared a brief exchange last week at the Shanghai Cooperation Organisation summit in Bishkek, Kyrgyzstan, the real action will unfold later this week at the Brics summit when Xi arrives in New Delhi with an expected delegation of 400 officials. China is one of India’s top trading partners, yet it remains unclear whether Chinese companies are welcome as investors in India. The two countries’ trade and investment relationship...