How to Block a Lost or Stolen Mobile Phone on CEIR (Sanchar Saathi Guide)

1. Direct Summary: How Does CEIR Mobile Blocking Work?

You can block any lost or stolen mobile phone online for free on the official Department of Telecommunications (DoT) CEIR portal at ceir.sancharsaathi.gov.in.

Under official DoT guidelines, when you submit a blocking request with your 15-digit IMEI number(s) and a police complaint copy:

• The CEIR system communicates with all telecom service providers (TSPs) across India.
• The device's IMEI is blacklisted across all Indian telecom networks within 24 hours.
• Once blacklisted, the phone cannot connect to any mobile cellular network in India.
• Automated Police Tracing: If anyone attempts to use the blacklisted handset by inserting a new SIM card, the telecom network automatically generates a traceability log and alerts the state police authorities to aid in recovery.
• Cost: The service is 100% free and managed by the Government of India.

2. Mandatory 4-Step Checklist Before Filing a CEIR Request

Before opening the CEIR portal, you must complete four essential prerequisites:

Step 1: Find Your 15-Digit IMEI Number(s)

• On Phone Packaging: Check the original retail box or barcode sticker of your smartphone. Dual-SIM phones have two unique numbers: IMEI 1 and IMEI 2.
• On Purchase Invoice: Check your printed bill or digital invoice (Amazon, Flipkart, or retail store).
• Via Google Dashboard (Android): Go to google.com/android/find, select your device, and click the "Device Information" (i) icon to view your IMEI.
• Via Apple ID (iPhone): Log into appleid.apple.com, navigate to "Devices", and select your iPhone to find the IMEI/MEID.

Step 2: Block the Stolen SIM & Get a Duplicate SIM

• Contact your telecom operator (Jio, Airtel, Vi, BSNL) immediately to block the compromised SIM card to prevent OTP theft.
• Visit your nearest official telecom store with your Aadhaar card to obtain a duplicate replacement SIM card with the same phone number. You will need this active number to receive the OTP when submitting your CEIR request.

Step 3: File an Online Police Complaint / Lost Article Report (LDR)

• File a police complaint or digital Lost Article Report on your state police portal (e.g., Delhi Police Lost Report, UP Police e-FIR, Maharashtra Police Lost Property Portal, etc.).
• Download and save the digital PDF copy containing your Police Complaint Number and the jurisdiction Police Station.

Step 4: Secure Your Digital Accounts

• Log into Google / Apple accounts on a computer and perform a remote sign-out.
• Inform your bank to temporarily freeze UPI access and mobile banking apps linked to that device.

3. Step-by-Step Guide to Block a Lost/Stolen Mobile on CEIR

Follow these official steps on the Government of India portal:

Step 1: Access the Official Sanchar Saathi CEIR Portal

• Visit the official website: ceir.sancharsaathi.gov.in or go to sancharsaathi.gov.in and click Block Stolen/Lost Mobile.
• The form "Request for blocking lost/stolen mobile" will open.

Step 2: Enter Device Information

• Mobile Number 1: Enter the phone number that was active in SIM slot 1.
• Mobile Number 2: Enter the second phone number if you used a dual-SIM phone.
• IMEI 1 & IMEI 2: Enter the 15-digit IMEI 1 (mandatory) and IMEI 2 (for dual-SIM phones).
• Device Brand & Model: Select the manufacturer brand and model from the dropdown.
• Upload Mobile Purchase Invoice: Upload a clear PDF/JPG copy of your device purchase bill (recommended).

Step 3: Enter Lost Information

• Lost Place: Name of the city/area where the device was lost or snatched.
• Lost Date & Time: Select the date and approximate time of the incident.
• State, District & Police Station: Select your state, district, and the local police station jurisdiction.
• Police Complaint Number: Enter the exact registration/complaint number from your police report.
• Upload Police Complaint: Attach the PDF/image copy of your stamped police complaint or digital Lost Article Report.

Step 4: Enter Mobile Owner Personal Information

• Owner Name: Enter your full legal name matching your ID proof.
• Address & Identity Proof: Upload a self-attested copy of your Aadhaar Card, PAN Card, Voter ID, Passport, or Driving License.
• Enter Identity Number: Enter your Aadhaar/PAN number corresponding to the uploaded document.
• Mobile Number for OTP: Enter your active mobile number (or your newly activated duplicate SIM number) and click Get OTP.
• Enter the 6-digit OTP, check the declaration box, and click Submit.

Step 5: Save Your Unique Request ID

• Upon successful submission, a Request ID (alphanumeric tracking reference) will be displayed on the screen and sent via SMS.
• Store this Request ID securely. You will require it to check status and to unblock the phone once it is recovered.

4. How CEIR Blacklisting and Police Tracing Work

• Nationwide Blacklist: Within 24 hours of submission, the CEIR database synchronizes with every telecom tower across India. If a person inserts any active SIM into the phone, the tower rejects cellular authentication.
• Real-Time Traceability: When the device is switched on with any new SIM card, the telecom operator's Equipment Identity Register logs the new phone number, tower location, and timestamp, transmitting an automated trace alert to the investigating police officer.
• Prevents Stolen Phone Resale: Blacklisted phones cannot make calls, send SMS, or access 4G/5G mobile data in India, destroying their black-market resale value.

5. How to Check Your CEIR Request Status

You can track the progress of your blocking request at any time:

• Visit the CEIR portal and click Check Request Status (or go to ceir.gov.in/Request/CeirRequestStatus.jsp).
• Enter your Request ID.
• Complete the captcha verification and click Submit to view whether the device is currently blocked or under process.

6. How to Unblock a Recovered Mobile Handset on CEIR

If your phone is recovered by the police or found by you, follow these steps to restore network connectivity:

• Visit ceir.sancharsaathi.gov.in and select Un-Block Found Mobile.
• Enter your original Request ID.
• Enter the mobile number provided during the initial blocking request.
• Reason for Unblocking: Select the appropriate option (*Recovered by Police*, *Found by Self*, *Blocked by Mistake*, or *Other Reason*).
• Enter your mobile number for OTP verification, submit the OTP, and click Submit.
• The IMEI will be removed from the national blacklist, and cellular network services will be restored on all telecom operators.

7. What to Do If You Forgot Your CEIR Request ID

If you misplaced your Request ID:

• Visit the CEIR portal and navigate to the Forgot Request ID section.
• Enter the mobile number that was provided for OTP notifications during the original submission.
• Verify via OTP to receive your Request ID via SMS.

8. Common Mistakes to Avoid

• Mistake 1: Delaying Police Complaint and SIM Block: Waiting days before reporting gives thieves time to access banking apps and reset devices. Block your SIM and file a police report immediately.
• Mistake 2: Entering Incorrect IMEI Numbers: Always verify all 15 digits of both IMEI 1 and IMEI 2. Typing an incorrect digit will block the wrong device or leave your phone accessible.
• Mistake 3: Sharing CEIR OTP with Unknown Callers: Fraudsters may call pretending to be "Sanchar Saathi Verification Officers" asking for your OTP. DoT officers never call citizens to demand OTPs.
• Mistake 4: Buying Second-Hand Phones Without KYM Verification: Before purchasing a used smartphone, verify its authenticity using the Know Your Mobile (KYM) feature on Sanchar Saathi or SMS KYM <15-digit IMEI> to 14422 to ensure the handset is not already reported as blacklisted or duplicate.