If you are getting Unsolicited Commercial Calls (UCC) even after a confirmed registration for Do Not Disturb (DND) at the NDNC/NCPR registry, you may complain to your service provider. Please note that TRAI or NDNC Registry doesn’t take complaints directly and it is your service provider who will handle these complaints.
Send an SMS in this format: the unsolicited commercial communication, XXXXXXXXXX, dd/mm/yy to 1909
Here, XXXXXXXXXX is the number against which you are complaining or the sender code in case of bulk SMS without a number. The next two are date and 24-hour time at which you received the unsolicited message or call. At the end, add a short description of the call you received.
e.g. ABC Bank about loans, 9999900000, 31/01/12
Alternately, call 1909 and follow instructions to register a complaint
Note: We do NOT store or otherwise keep track of the phone numbers or complaint numbers you submit.