Telecom regulator TRAI received the maximum number of complaints for call drops against Bharti Airtel, followed by Vodafone, Idea Cellular and BSNL, this year. There were 31 complaints of call drops against Airtel in 2015 (up to June 30), followed by 17 against Vodafone and 10 each for BSNL and Idea Cellular, Telecom Minister Ravi Shankar...
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