Airtel has spent about Rs 40,000 crore on the 5G spectrum and an equal amount on rolling out the network and more needs to be done, according to Mittal.
Shares of Bharti Airtel surged 6 per cent to hit an all-time high of Rs 756 on BSE after the company announced tariff hikes on prepaid plans. The Rs 79 plan, for instance, will cost Rs 99 from November 26.