AFTER the entry of Reliance Jio in September 2016, the entire telecom sector has undergone a sea-change. Telecom biggies like Airtel, Vodafone, Idea and BSNL have gone into loss and are facing a serious financial crisis. Smaller telecom companies like Aircel, Tata Teleservices, Anil Ambani led Reliance Infocomm, Telenor, etc., have either closed down, or have got merged with bigger companies. Vodafone, a multinational giant, is unable to run its business in India and has got merged with Kumarmangalam Birla’s Idea. The merged entity is now called Vodafone Idea.