It’s a sultry March evening in the suburbs of Mumbai and a group of men hovers anxiously at the back gate of a startup called Yotta Data Services. They pace, pause and fret. It’s approaching midnight, 10 hours late, when a truck pulls up with the precious cargo they’ve been waiting for: semiconductors from Nvidia Corp.The company’s products are so coveted because they’re essential for the development of artificial intelligence, the technology that’s set off a frenzy in industries around the worl...