When Apple reports its earnings on Wednesday, you can expect mentions of India on the call.

Apple shipped more than 1.5 million iPhone units in India in the quarter that ended in December, up 100% year-on-year, making this its best quarter in the world’s largest smartphone market to date, according to research firms Counterpoint and CyberMedia Research.

Thanks to the improved sales of older generation iPhone 11, iPhone XR, iPhone 12 and the newer iPhone SE, Apple doubled its market share in India to 4% in the quarter, the research firms said.

Overall, Apple shipped more than 3.2 million iPhone units in India in 2020, up 60% year-on-year, Counterpoint said.

The shipment growth comes months after Apple launched its online store in the country and offered customers a wide-range of financing and upgrade options, AppleCare+, and lucrative perks such as a free set of AirPods with the purchase of iPhone 11. The company plans to open its first physical retail store in the country later this year.

For more than a decade, Apple has struggled to sell its handsets in India because of the expensive price tags they carry. Most smartphones that ship in India are priced between $100 to $200. Samsung, and a group of Chinese smartphone vendors including Xiaomi, Oppo, and Vivo flooded the market in the past decade with their affordable smartphones.

None the less, in recent years Apple has visibly grown more interested in the country that is also one of the world’s fastest growing smartphones markets. The company’s contract manufacturers today locally assemble a range of iPhone models and some accessories — an effort the company kickstarted more than two years ago. (A recent violent event at an Indian facility of Wistron, one of Apple’s contract manufacturers, however, underscored some of the challenges Apple will grapple with as it looks to scale its local production efforts in the country.)

That move has allowed Apple to lower prices of some older generation iPhone models in India, where for years the company has passed import duty charges to customers. The starting price of the iPhone 12 Pro Max is $1,781 in India, compared to $1,099 in the U.S. (Apple has yet to start locally assemble the iPhone 12 units.) The AirPods Pro, which sells at $249 in the U.S., was made available in India at $341 at the time of launch. AirPods Max, similarly, is priced at $815 in India, compared to $549 in the U.S. (It doesn’t help that an average person in India makes $2,000 a year.)

Unlike most foreign firms that offer their products and services for free in India or at some of the world’s cheapest prices, Apple has focused entirely on a small fraction of the population that can afford to pay big bucks, Jayanth Kolla, chief analyst at Convergence Catalyst, told TechCrunch.

That’s not to say that Apple has not made some changes to its price strategy for India. The monthly cost of Apple Music is $1.35 in India, compared to $9.99 in the U.S. Its Apple One bundle, which includes Apple Music, TV+, Arcade and iCloud, costs $2.65 a month in India.