The primary objective of the National Do Not Call Registry (NDNC Registry) is to curb Unsolicited Commercial Communication (UCC). UCC has been defined as "any message, through telecommunications service, which is transmitted for the purpose of informing about,or soliciting or promoting any commercial transaction in relation to goods, investments or services which a subscriber opts not to receive, but, does not include

• Any message (other than promotional message) relating to a service or financial transaction under a specific contract between the parties to such contract; or
• Any messages relating to charities, national campaigns or natural calamities transmitted on the directions of the Government or agencies authorized by it for the said purpose.
• Messages transmitted, on the directions of the Government or any authority or agency authorized by it, in the interest of the sovereignty and integrity of India, the security of the State, friendly relations with foreign States, public order, decency or morality.