New Delhi: Apple Inc. is looking to more than double the number of iPhones it makes in India to 50 million-plus units per year by 2028, three people aware of the matter told Mint on the condition of anonymity. The move, which would entail significant capacity build-up at Apple’s India partners, comes in the backdrop of a US-China trade standoff that threatens the company’s long-standing supply chain balance. China currently accounts for 80% of all iPhone manufacturing for Apple, according to data from market researcher International Data Corporation (IDC), and India has 10% share. Earlier on Friday, a report by…