Also, mobile data traffic generated is forecast to grow 12-fold to reach 1.7 Exabytes (about 430 million DVDs) per month by 2020, driven by availability of cheaper smartphones and affordable data tariffs, said Cisco's Mobile Visual Networking Index released today.
Mobile data traffic was about 148.9 Petabytes (34 million DVDs worth of data) per month in 2015.
Future mobile innovations in cellular like 5G and wi-fi solutions will be needed to further address new scale requirements, security concerns, and user demands, he added.
The report said 4G connections in India are expected to grow at a compound annual growth rate (CAGR) of 144 per cent in 2015-2020, accounting for 26.2 per cent of the total mobile connections by 2020.
3G connections are forecast to be 52.6 per cent of the total mobile connections by 2020, compared to 15.7 per cent in 2015, it added.