Bharti Airtel added 1.02 million subscribers during the same period.
Vodafone Idea lost 18.74 million subscribers during the same period.
Pankaj Mohan Pawar will take over as the managing director of the company from 27 June.
Vodafone Idea lost 1.56 million wireless subscribers during the same period.
It said the advisory comes in light of instances of several ads on online betting websites/platfor