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Chief technology officers of telecom operators Reliance Jio and Bharti Airtel have resigned from their respective companies. Reliance Jio Group's Chief Technology Officer Jagbir Singh had joined the company before the soft launch of 4G services. Prior to this assignment, Singh was working with Samsung and had previously worked with Airtel for about a decade. According to a source, he is moving back to Delhi but did not disclose any further details. Email sent to Reliance Jio did not elicit any reply. Bharti Airtel's Chief Technology Officer for mobile networks, Shyam Prabhakar Mardikar has also put in his papers. ALSO READ: Bharti Airtel, Idea Cellular, Tata Comm hit 52-week lows When contacted, Bharti Airtel spokesperson confirmed the development. According to the source, Mardikar has resigned to move up the ladder in his career path. Mardikar has been with Airtel since August 2012. This was his second stint with the telecom major.  Ear...

Telecom major Bharti Airtel is likely to shut down 3G service in next 3-4 years and reframe the spectrum linked with it for 4G services, a top official of the company said. "There is almost no spent that we are doing on 3G. Our view is in next 3-4 years we are likely to see 3G network actually shut down faster than 2G network because there are still 50 per cent of phone being shipped out in India that are feature phones," Gopal Vittal, MD and CEO, India and South Asia, Bharti Airtel, said during earnings call on Wednesday. He said that the company is investing in 4G technology to build more data capacity in the network. The company will use 2100 megahertz band, which is used for 3G services, for 4G services. "Where we have the second carrier of 3G or third carrier then through the flip of software you get incremental capacity on 3G. Most of that spectrum will finally go towards 4G for which we will need to have radio units," Vittal said. He s...