
successful auction of airwaves and the launch of 4G services were the high points for India's telecom industry in 2015 even as the lingering problem of call drops and bottlenecks in infrastructure, notably on transmission towers, remained major areas of concern.
Early in the year, the country saw the biggest auction of spectrum when the government garnered Rs 1.10 lakh crore ($17.6 billion) to licence 380.75MHz of airwaves in the 900MHz, 1,800MHz and 800MHz and 2100MHz bands across 17 out of 22 telecom circles.
The telecom service providers that participated in the marathon auctioning were: Idea Cellular, Bharti Airtel, Vodafone India, Reliance Communications, Reliance Jio, Tata Teleservices, Telenor and Aircel.