According to data from Counterpoint Research, iPhone sales in India are booming. Apple reportedly shipped 800,000 units in the December quarter to the country, up from 500,000 a year ago. Apple has been aggressively promoting their phones with substantial discounts to sustain sales, given high prices for iPhone 6s in India (via Economic Times).
Even with price cuts, that 800,000 number is composed of older iPhone models too. The report indicates that iPhone 5s was responsible for 30% of the sales numbers. About half of the 800k number are made up of iPhone 6s and iPhone 6s Plus.