Cook met Modi as part of an Asian tour aimed at boosting sales. While smartphone usage is surging as the middle class swells, most Indians still can’t afford Apple’s iPhones and the company has only about 2% market share in a country where 100 million phones were sold last year. The Apple CEO’s visit to India comes at a time when the US technology giant is hit by slower growth in global sales of its flagship products and has his work cut out in a market that is growing fast.