Telecom Regulatory Authority Of India - Subsection
Section 17(b) in The Telecom Unsolicited Commercial Communications Regulations, 2007
(b)unless such subscriber, to whom unsolicited commercial communication is sent, has not been registered in the National Do Not Call Register under these regulations or the period of forty-five days has not expired from the date of making a request under sub-regulation (1) of regulation 7;
