MargadarshiniBlock a lost or stolen phoneతె
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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.

About this guidePending verification

Published on 12-11-2026. Not every fact has been checked against its official source yet: confirm at the office.

Where:By phoneAt the officeOnline

For whom: People in Telangana whose mobile phone is lost or was stolen.

1Your situation

We show only what your answers need.

Where are you now?
Has money gone from your bank account or UPI through that phone?

Your answers stay on this phone.

2Documents you need

Tick the ones you have. They are kept in this browser.

  • Details

    Two IMEI numbers for a dual-SIM phone

    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.

    Sources: 1

  • Details

    For upload: a PDF, JPG or PNG file

    If you don't have it: From the police station where you report the loss (see the steps).

    Sources: 1, 2, 5

  • Details

    Any one of: masked Aadhaar (the first 8 digits hidden), PAN card, voter ID, driving licence, or another identity card

    Sources: 1

  • Details

    Sources: 1, 5

  • Details

    Not confirmed: The papers we read do not list which cards are accepted for digital KYC without Aadhaar. Ask at the store.

    Sources: 7, 10

  • Details

    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.

    Sources: 5, 2

    3Your steps

    · Do them in order. Tick each one when it is done.

    If something goes wrong
    1. Do this now

      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.

      Where
      National Cyber Crime Helpline 1930

      Sources: 13

    2. Do this now

      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.

      Where
      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.

      Sources: 10, 11, 12, 9

    3. Do this now

      Report the loss at a police station.

      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.

      Where
      Police station
      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.

      Sources: 1, 5

    4. Do this now

      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.

      Where
      Your mobile company's store
      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.

      Sources: 7, 8, 10, 12

    5. Do this now

      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.

      Where
      You do this yourself

      Sources: 7, 1

    6. Do this now

      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, model and price; the place and date of the loss; the state (Telangana), district, 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.

      Where
      CEIR (Sanchar Saathi)
      Open the official page

      Sources: 1, 5, 6

    7. Do this now

      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.

      Where
      You do this yourself

      Sources: 5, 2

    8. Do this now

      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.

      Where
      CEIR (Sanchar Saathi)
      Open the official page

      Sources: 5, 3, 6

    9. Do this now

      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.

      Where
      The police station named in the SMS

      Sources: 6, 5

    10. Do this now

      On CEIR, open "Request for un-blocking recovered/found mobile" and leave "Un-Blocking Request" selected.

      Give the Request ID, the mobile number you gave for the OTP when blocking, and the reason ("Recovered by police" or "Found by self"). Submit it with the OTP.

      Where
      CEIR (Sanchar Saathi)
      Open the official page
      Not confirmed

      CEIR's un-blocking request does not ask for the police complaint. No official page we read says whether you must tell the police that the phone has been found. Ask at the police station where you complained.

      Sources: 2, 5

    11. Do this now

      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.

      Where
      CEIR (Sanchar Saathi)
      Open the official page

      Sources: 5

    If something goes wrong

    If it is rejectedIf CEIR does not accept your request, read the error message it shows, correct the details and try again.

    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 · Open the official page

    Sources: 5, 4

    If it is lateIf the company does not block the SIM or give a new one, complain on its customer care number and take the docket number.

    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

    Sources: 9

    AlsoIf 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.

    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

    Sources: 1

    AlsoIf you have lost the Request ID, open "Forgot Request ID" on CEIR and give the mobile number you used when blocking, with the OTP.

    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) · Open the official page

    Sources: 5

    Official websites for this work

    All official websites →
    Find the office in your district →

    Related guides

    Report a mistake on this page
    The 13 official pages and papers this guide is written from
    1. Request for blocking lost/stolen mobile (CEIR User Direct Request Blocking Form)Department of Telecommunications, Government of India (Sanchar Saathi CEIR, run by C-DOT), Prerequisites for Blocking lost/stolen mobile handset; Device Information; Lost Information; Mobile Owner Personal Information; note on new handsets without SIM used · read on 30-10-2026
    2. Request for un-blocking recovered/found mobile (CEIR User Direct Request Un-Blocking Form)Department of Telecommunications, Government of India (Sanchar Saathi CEIR, run by C-DOT), Un-Blocking Request; Update Police Complaint; Reason for Un-blocking · read on 30-10-2026
    3. Check lost/stolen Mobile Request StatusDepartment of Telecommunications, Government of India (Sanchar Saathi CEIR, run by C-DOT), Request ID / Complaint No. format information · read on 30-10-2026
    4. Sanchar Saathi: block your lost or stolen mobile (CEIR home page)Department of Telecommunications, Government of India (Sanchar Saathi CEIR, run by C-DOT), Citizen Services; footer link "Grievance" (23-10-2026) · read on 30-10-2026
    5. C-DOT CEIR User Manual for Mobile User, Version 03Centre for Development of Telematics (C-DOT), for the Department of Telecommunications, Sections 1.3 (process flow), 2.1 (blocking), 2.2 (unblocking), 2.3 (check request status), 2.4 (forgot request ID) · read on 30-10-2026
    6. Over 6 Lakh Lost and Stolen Mobile Handsets recovered on DoT's Sanchar Saathi InitiativePress Information Bureau, Ministry of Communications, Paragraphs 2-3 (blocking, traceability alerts, recovery) and the call to report lost devices (30-09-2025) · read on 30-10-2026
    7. Amendment/addendum to the existing instructions for adequate verification of customers before enrolling them as subscribers (File No. 800-09/2023-AS.II)Department of Telecommunications, Government of India (Access Services Wing), Paragraph 5 (Aadhaar e-KYC modalities) and paragraph 6 (SIM swap/replacement, 24-hour SMS bar) (31-08-2023) · read on 30-10-2026
    8. Handling of SIM Swap/replacement requests pertaining to the end users of business connections (File No. 800-09/2023-AS.II-Part(1))Department of Telecommunications, Government of India (Licensing Policy), Paragraphs 1 and 3 (the SIM swap process applies to all subscribers since 01.12.2023) (23-06-2025) · read on 30-10-2026
    9. Consumer Handbook on Telecommunications (2018)Telecom Regulatory Authority of India, Chapter 2, Complaint Redressal: Complaint Centre, docket number, Appeal to Appellate Authority (04-05-2018) · read on 30-10-2026
    10. How to Block Stolen or Lost Airtel Sim Card?Bharti Airtel Limited (the operator's own website), Sections 1 (customer care) and 2 (Airtel store) (22-05-2026) · read on 30-10-2026
    11. Jio Support: Customer Care Contact InformationReliance Jio Infocomm Limited (the operator's own website), Customer care helpline for mobile users (dial from a non-Jio number) · read on 30-10-2026
    12. Block your SIM Card/Mobile Number OnlineVodafone Idea Limited (the operator's own website), Block your SIM (OTP to alternate number and email); "call 199"; replacement at a Vi Store · read on 30-10-2026
    13. 'National Cyber Crime Reporting Portal' enables public to report incidents of cyber-crimes, with special focus on cyber-crimes against women and childrenPress Information Bureau, Ministry of Home Affairs, First paragraph (helpline 1930, 24x7) (18-12-2024) · read on 30-10-2026