Citing industry request for extension in timelines, Trai said "it has been decided to extend the last date for submission of written comments up to 23 January 2020 and counter comments by 6 February 2020".
No further request for extension would be entertained, Trai said in a statement.
Last month, telecom regulator had invited public views on enhancing transparency in disclosure of phone services rates and mooted an idea of introducing tariff calculator to help customers find the best plans to suit their usage.
Trai sought views on higher transparency in details of unlimited data plans, where promised speed is provided only up to a certain level of usage and information is concealed in service thereafter.
"The transparency in communication is not only relevant to ensure that consumers benefit from the access to critical information regarding the product/service but also to maintain and increase the competition intensity, vital for growth and development of the sector," Trai had said in its recent consultation paper on transparency in publishing of tariff offers.
The move came after Trai received a significant number of complaints from individual consumers on lack of transparency in disclosure of tariff information.