WASHINGTON — U.S. President Joe Biden signed on Tuesday an executive order to boost development of artificial intelligence infrastructure in America. A day earlier, his administration announced sweeping measures to block access to the most advanced semiconductors by China and other adversaries. But the U.S. left India, its strategic partner in the Indo-Pacific, off a list of 18 countries that are allowed unrestricted access to advanced AI chips. Analysts say while a growing technological relationship between the two countries would likely make India eligible in the future to access advanced U.S. AI chips, New Delhi’s existing ties with Moscow and