India is expected to have 90 million 4G subscribers in 2018 from near zero in early 2016, according to a report by Bank of America Merrill Lynch.

As often happens, tariffs for the next generation network will not have much of a premium over prices for the earlier generation.

Declining smartphone prices also will provide incentives for 2G customers to jump to 4G, instead of buying 3G services.

Aside from the consumer behavior, 4G should drive significant market share shifts, with new entrant Reliance Jio poised to take as many as 45 million customers away from the incumbents.