Telecom Regulatory Authority Of India - Subsection
Section 3(3) in The Telecom Consumers Protection and Redressal of Grievances Regulations, 2007
(3)No call charges or short message service charges shall be levied upon, or payable by its consumers, for calls made, or, short message service sent, to the "toll free number" or "consumer care number" or "help line number" or "special number", as the case may be, referred to in clause (b) of sub-regulation (2).
