Telecom Regulatory Authority Of India - Subsection
Section 7(1) in The Telecom Unsolicited Commercial Communications Regulations, 2007
(1)Every existing subscriber and new subscriber may, immediately after establishment of call center or office or mechanism under sub-regulation (1) of regulation 3, make a request, through telephone or electronic means or through a letter to his Access Provider, for registration of his telephone number in the National Do Not Call Register.
