Lost or Stolen Phone in India: How to Block IMEI on the CEIR Portal

Kaustav Chowdhury
Jun 12
3 min read

If your phone is lost or stolen in India, you can block it on every mobile network in the country through the Central Equipment Identity Register, the CEIR portal run by the Department of Telecommunications at ceir.gov.in. Once the IMEI is blocked, the handset cannot be used with any Indian SIM card, which destroys its resale value and protects you from misuse. This guide walks through the full process: the police complaint, the documents, the blocking request, and what to do if you recover the phone.

Acting quickly matters for more than the handset. A stolen phone often carries banking apps, UPI accounts and personal data, so blocking the device should go hand in hand with securing your accounts and, where fraud occurs, the reporting steps in our guide on how to file a cyber crime complaint online in India.

Step 1: File a Police Complaint

A police complaint is a precondition for blocking through CEIR. Report the loss or theft at the nearest police station or through your state's online portal; for theft, an FIR can be registered, and several states allow e-FIRs for such offences, as explained in our guide on how to file an FIR online, including e-FIR and Zero FIR. Keep the complaint number or FIR copy, since the CEIR form requires it.

Also call your telecom operator and get the SIM blocked, then obtain a duplicate SIM for the same number. You will need a working connection on that number to receive the OTP during the CEIR process.

Step 2: Gather Your Documents

Keep ready: the 15-digit IMEI number of the device, which appears on the purchase invoice and the box, or can be noted in advance by dialling *#06#; a copy of the police complaint or FIR; an identity proof; and the purchase invoice if available. If you do not know the IMEI, your operator or the retailer's records can help.

Step 3: Submit the Blocking Request on CEIR

Visit ceir.gov.in and choose the option to block a stolen or lost mobile. Fill in the device details, the place and date of loss, the police complaint number, your identity details and a mobile number for OTP verification, and upload the supporting documents. After submission you receive a request ID, which you should save for tracking and for unblocking later. The block typically propagates across all Indian networks within 24 to 48 hours.

Blocking does not locate the phone by itself, but if anyone inserts a SIM into the blocked device, the attempt can assist police tracing. Follow up with the investigating officer using your complaint number.

Step 4: Secure Your Money and Data

Independently of CEIR, change passwords for email and banking, deregister UPI and wallets from the lost device, and inform your bank if any transaction looks suspicious. If your number was misused before the SIM was blocked, watch for SIM-swap style frauds of the kind discussed in our coverage of the Karnataka High Court's SIM swap fraud ruling against BSNL. Also review identity-linked services using the steps in how to check Aadhaar authentication history and lock biometrics.

If You Get the Phone Back

Recovered devices can be unblocked on the same portal using the request ID, after informing the police. Unblocking restores normal network access. Do not buy or sell a phone with a blocked IMEI; dealing in stolen devices can attract criminal liability, and CEIR's IMEI verification service lets buyers check a device's status by SMS or on the portal before purchase.

A few preventive habits make this entire process easier. Record your IMEI the day you buy a phone and store it with the invoice; enable the manufacturer's find-my-device service and remote wipe; and keep two-factor authentication for banking on an app or hardware method you can restore quickly. Families should do this for elderly members' phones too, since those devices often hold the same banking access with fewer protections. Five minutes of preparation turns a stressful theft into an administrative formality.

The Department of Telecommunications also runs citizen services that complement CEIR, including a facility to check how many mobile connections are active in your name and to flag connections you never took. Reviewing this periodically helps detect misuse of your identity documents for SIM issuance.

Key Takeaways

To block a lost or stolen phone in India, file a police complaint, get a duplicate SIM, and submit a blocking request on ceir.gov.in with the IMEI, complaint number and identity proof; the block takes effect across all networks within about 24 to 48 hours. Save the request ID for tracking and unblocking. Secure banking apps and passwords immediately, and check IMEI status before buying any second-hand phone.