The US-India relationship is destined to deepen as long as China poses a threat, an eminent Indian-American expert has said. Ashley Tellis, the Tata Chair for Strategic Affairs, at the Carnegie Endowment for International Peace, also said the coming years are also going to see a deepening of ties, not just between the two nations, but between the two societies. “This (India-US) relationship is destined to deepen as long as China remains out there as something that both countries will have to manage," he said. The US has been placing focus on India, seeking to cement ties with one of…