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, ----

 (i) any message (other than promotional message) relating to a service or financial transaction under a specific contract between the parties to such contract;or 

(ii) 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; 

(iii) 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." 

The NDNC Registry will be a data base having the list of all telephone numbers of the subscribers who do not want to receive UCC.After the establishment of NDNC registry, Telephone subscriber (Landline or mobile) who does not wish to receive UCC, can register their telephone number with their telecom service provider for inclusion in the NDNC. Telecom Service Provider shall upload the telephone number to the NDNC within 45 days of receipt. The Telemarketer will have to verify their calling telephone numbers list with the NDNC registry before making a call.An amount of Rs 500/- per call/message has been prescribed to discourage telemarketers who make calls to numbers registered in Do Not Call list. The defaulter telemarketer will face disconnection of telecom service