When Reliance Industries Ltd (RIL) launched its Jio mobile telephony service in September 2016, it was like a cyclone making landfall. Existing rivals had no strategy (read: money) to stand before its initial free-for-six-months offer or its astute decision to go for a nationwide launch of the latest 4G VoLTE. The rivals were stuck with 3G, for which they had paid a bomb to get spectrum, or still testing 4G VoLTE in pockets.