Here are top three key points:
1. The top five operators in terms of connections are: Bharti Airtel, Vodafone, Idea, Reliance, BSNL, Aircel and Tata Teleservices.
2. With the introduction of mobile number portability, subscribers have changed operators with the expectation of getting better services from the new operator and lack of satisfaction with the services of the previous operator.
3. State-owned BSNL has seen net increase in revenue, despite subscribers porting out. In 2013-14 it reported Rs 591.87 crore in revenue.