The regulator issued draft rules following receipt of several complaints from consumers relating to anomalies in charging of data services.
"On request of the stakeholders, the last date for receipt of written comments (on draft Telecom Consumer Protection (Eighth Amendment) Regulations, 2015) has been extended up to May 26, 2015," The Telecom Regulatory Authority of India said in a statement.
Earlier the last date for comments was fixed for May 12.
The draft rule bars activation and de-activation of mobile internet services without explicit consent of consumers.
At present telecom operators deny de-activating of mobile internet which often results in bill shocks to consumers.
The data charges consumed beyond internet scheme that a consumer has subscribed can go as high as Rs 10,000 per gigabyte which telecom operators at present sell for about Rs 175 only.
"TRAI has also received complaints from consumers that while on international roaming they are not aware of the charges levied for data services," the regulator said.
