The Telecom Regulatory Authority of India (Trai) mandates that 100 per cent of the complaints related to billing or charging should to be resolved within four weeks.
The regulator now has relaxed the time to six weeks for resolution of all the complaints.
"The Authority after considering the views of service providers has decided to rationalise the benchmark to 98 per cent or more within 4 weeks and 100 per cent within 6 weeks, providing leverage for unforeseen cases," Trai said.
The Authority has amended the 'the standards of quality of service of basic telephone service (wireline) and cellular mobile telephone service regulations, 2014' for the purpose.
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Trai has also revised the response time for answering customers calls.
The regulator said 95 per cent or more calls from customers should be answered within 90 seconds. The earlier benchmark was 90 per cent calls within 60 seconds.