The issues are manyfold: Firstly, customers can only buy iPhones from its authorized resellers and from carriers Aircel and Bharti airtel. Relating to this, while customer can buy unlocked iPhones from these same outlets, the price of a locked phone is similar to that of an unlocked phone. The complaint appears to allege that carriers are taking advantage of their unusual (for India’s market) exclusivity to charge unreasonable prices for Apple’s iPhones.

Apple dictates the market wherever it does business.

Apple Accused of Anticompetitive Practices in India Over iPhone | TMO