Pankaj Mohan Pawar will take over as the managing director of the company from 27 June.
Bharti Airtel added 2.25 million wireless subscribers during the same period.
Bharti Airtel was the only telco that added net wireless subscribers.
The new subsea cable system IAX will connect the Maldives directly with India and Singapore.
Vodafone Idea also lost 1.6 million subscribers during the same period