New Delhi, Aug. 4 -- Apple Inc. exceeded $10 billion in annual sales in India for the first time last fiscal year, underscoring surging demand for its pricey devices in a market where it's steadily ramping up its retail network.

Revenue grew at double-digit percentage rate in the 12 months through March from about $9 billion a year earlier, according to a person familiar with the matter, who asked not to be identified as the information is private. Apple's marquee iPhones accounted for a significant majority of the sales, while demand for iPads and MacBooks also rose, the person said.

The previously unreported figures in the world's most populous country are a boon for Apple's efforts to find new growth markets. While India still repres...