Block a lost or stolen phone

Block a lost or stolen phone
Your SIM is blocked, you get a new SIM with the same number, and the lost phone is blocked across India. If it is found, you can unblock it.
For whom: People in Telangana whose mobile phone is lost or was stolen.
Published on 30-10-2026. Not every fact has been checked against its official source yet: confirm at the office.

Only if

Where are you now? My phone is lost or was stolen · Has money gone from your bank account or UPI through that phone? Yes, or I think so
1.
If money was taken through the phone, call 1930 at once. This cyber crime helpline works 24 hours a day, every day. For what to do next, see the "Report a cyber fraud" guide.
📞 National Cyber Crime Helpline 1930

Only if

Where are you now? My phone is lost or was stolen
2.
From another phone, call your mobile company's customer care and ask them to block the lost SIM. Airtel: 121 or 198 from an Airtel number, 1800 103 4444 from any other number. Jio: 1800 889 9999 from a non-Jio number. Vi: 199, or "Block your SIM" on myvi.in.
📞 Your mobile company's customer care
Not confirmed: These numbers are from the companies' own websites (October 2026) and may change. BSNL's website did not open for us: BSNL users, ask at a BSNL customer service centre.
3.
Report the loss at the police station of the area where the phone was lost. Give the phone's brand, model and IMEI number, and the date and place of the loss. Take the complaint number and a copy of the complaint: CEIR needs both to block the phone.
🏛️ The police station of the area where the phone was lost
📎 The phone's IMEI number (15 digits)
Not confirmed: We could not see whether Telangana Police's website (tspolice.gov.in) takes this report online: the site did not open for us. Ask at the police station.
4.
Go to your mobile company's store for a new SIM with the same number. They will do Aadhaar e-KYC (fingerprint, iris or face) or digital KYC. The new SIM starts only if your details and photo match the company's records.
🏛️ Your mobile company's store
📎 Your original identity card (Aadhaar, for Aadhaar e-KYC)
Not confirmed: We could not confirm the charge for the new SIM from an official source; it is set by the company. Ask at the store and take a receipt.
5.
For the first 24 hours the new SIM cannot send or receive SMS. CEIR sends its OTP to this number, so wait 24 hours before the next step.
✋ You do this yourself
6.
On the CEIR site, fill in the form "Request for blocking lost/stolen mobile": the mobile numbers that were in the phone, its IMEI numbers, brand and model; the place and date of the loss; the state (Telangana), police station, complaint number and a copy of the complaint; your name, address and identity card. Submit it with the OTP sent to the new SIM. You can also do this in the Sanchar Saathi app.
💻 CEIR (Sanchar Saathi)
ceir.gov.in ↗
📎 The phone's IMEI number (15 digits), Copy of the police complaint (FIR or lost report) and its number, Copy of your identity card, The phone's purchase bill (if you have it)
7.
After you submit, you get an 18-digit Request ID. Keep it safe, with the police complaint number and the IMEI number: you need them to check the status and to unblock the phone once it is found.
✋ You do this yourself
8.
On CEIR, check the status under "Check lost/stolen Mobile Request Status" with your Request ID. When it says "Blocking Request is successfully processed", your phone is blocked on every company's network and nobody can use it.
💻 CEIR (Sanchar Saathi)
ceir.gov.in ↗
9.
If anyone puts a SIM in your phone, an alert goes to you and to the police station where you complained. An SMS tells you which police station to contact. Contact that station; the police trace the phone and return it.
🏛️ The police station named in the SMS

Only if

Where are you now? I blocked my phone and now I have it back
10.
Tell the police station where you complained that the phone has been found. Keep the complaint number and the copy of the complaint: the unblocking form asks for both.
🏛️ The police station where you complained
📎 Copy of the police complaint (FIR or lost report) and its number
Not confirmed: We could not check on Sanchar Saathi's help pages whether you must tell the police before unblocking: they did not open for us. The CEIR form does ask for the complaint number and a copy, and has an "Update Police Complaint" option. Ask at the station.
11.
On CEIR, in the form "Request for un-blocking recovered/found mobile", give the Request ID, the mobile number you gave when blocking, the police complaint number, a copy of the complaint and the reason ("Recovered by police" or "Found by self"). Submit it with the OTP.
💻 CEIR (Sanchar Saathi)
ceir.gov.in ↗
📎 CEIR Request ID (18 digits), Copy of the police complaint (FIR or lost report) and its number
12.
When "Check Request Status" says "Un-Blocking Request is successfully processed", the mobile companies unblock the phone on their networks. Then the phone works again.
💻 CEIR (Sanchar Saathi)
ceir.gov.in ↗

Documents you need

Not confirmed: CEIR's checklist asks for the IMEI "if available", but the form makes the first IMEI compulsory. We found no official page saying where to find it. Look at the phone's box and purchase bill, or ask the shop that sold it.
If you don't have it:
From the police station of the area where the phone was lost (see the steps).
Not confirmed: The papers we read do not list which cards are accepted for digital KYC without Aadhaar. Ask at the store.
If you don't have it:
The number CEIR gave when you blocked the phone. If you have lost it, use "Forgot Request ID" on CEIR.

If something goes wrong

If it is rejected
If CEIR does not accept your request, read the error message it shows, correct the details and try again. If it still fails, complain to Sanchar Saathi through the "Grievance" link at the bottom of the CEIR site.
Sanchar Saathi grievance
sancharsaathi.gov.in ↗
Not confirmed: The grievance page itself did not open for us; the link is on the CEIR site.
If it is late
If the company does not block the SIM or give a new one, complain on its customer care number and take the docket number. If it is not solved in time, appeal to the company's Appellate Authority within 30 days after that time runs out. An appeal is free; the Appellate Authority's details are on the company's website.
The company's complaint centre, then its Appellate Authority
Not confirmed: This is from TRAI's 2018 handbook and may have changed since. Check the current rules on the company's website.
Also
If a new phone was lost or stolen before any SIM was used in it, contact the district CEIR nodal police officer with a copy of the FIR or police complaint that has the IMEI numbers.
District CEIR nodal police officer
Also
If you have lost the Request ID, open "Forgot Request ID" on CEIR and give the mobile number you used when blocking, with the OTP. It shows the Request IDs of the requests made with that number.
CEIR (Sanchar Saathi)
ceir.gov.in ↗
→ Report a cyber fraud→ Getting lost documents again
Updated on 30-10-2026
Sahayam is not a government service. We take no applications, documents or money.
About Sahayam