Losing your phone triggers a very specific kind of panic. It isn’t just the cost of the handset it’s the banking apps, the OTPs, the photos, and the contacts that suddenly sit in a stranger’s pocket. The good news is that India now has a straightforward, fully online system to report the loss and permanently disable the device, so it becomes useless to whoever picks it up.
This guide walks you through both pieces of the process: filing a mobile lost complaint online with your state police, and then blocking the handset nationwide through the government’s CEIR portal. Follow the steps in order, and you can have your phone blacklisted within a day.
Step 1: File an Online Police Report
Before you touch the CEIR website, you need an official record that the phone is missing. This is the document that proves, legally, that you were not the one using the device after it went missing.
You do not need to visit a police station in person for a simple lost-phone case. Nearly every state has a “Citizen Services” or “Lost & Found” portal for exactly this purpose:
- Delhi Police Lost Article Report section
- UP Police via the UPCOP app
- Maharashtra Police Citizen Portal
- Karnataka (Bengaluru) E-Lost & Found Report portal or app
Open your state’s portal, select the lost-item complaint option, and fill in:
- Your name, contact number, and address
- The phone’s brand, model, and IMEI number (dial *#06# on another phone if you don’t have it saved, or check the original box)
- The date, time, and location where you lost it
Once submitted, the portal instantly issues a digitally signed PDF usually called a Lost Report or e-FIR acknowledgment. Download and save this PDF. You’ll need it in the next step, and most telecom operators and insurers accept it as valid proof of loss.
Note: This online route is only for genuinely lost items. If your phone was snatched, grabbed from your hand, or stolen through force, that is a criminal offence, not a “lost article” see the FAQ section below for what to do instead.
Related post: Section 352 BNS Intentional Insult Punishment: 2026 Guide
What is the CEIR Portal?
Filing the police report stops there it documents the loss but doesn’t stop anyone from using your phone. That’s where the Central Equipment Identity Register (CEIR) comes in.
CEIR is a Government of India initiative run by the Department of Telecommunications, built to combat mobile theft nationwide. It works through the Sanchar Saathi platform and maintains a live database of every phone’s unique IMEI number. Once you register a complaint here, your device is added to a shared blacklist that every telecom operator in the country checks against.
Why CEIR is Powerful
| Feature | What It Does |
| Network Ban | Blocks the IMEI across all telecom networks (Jio, Airtel, Vi, BSNL), so the phone can’t connect to any SIM in India |
| Location Alert | Helps law enforcement trace the device if it reconnects to a network on a new SIM |
| Prevent Misuse | Stops resale a blacklisted IMEI shows up instantly if anyone tries to buy or activate the device |
In short, CEIR turns a stolen phone into a paperweight the moment the thief inserts a new SIM card and it pings a tower.
Step 2: Block the Phone via CEIR
Once your duplicate SIM is active and you have the police report PDF in hand, you’re ready to block the IMEI. Here’s the full sequence, from the moment you realise the phone is missing to the moment it’s blacklisted.
CEIR Blocking Procedure
Block SIM Card
Timeframe: Within 1 hour Call your telecom operator’s helpline right away and request that your SIM be blocked. Ask for a duplicate SIM with the same mobile number you’ll need an active number to receive the OTP for CEIR verification.
File Police E-FIR
Timeframe: Day 1 Go to your state police portal and register the “Lost Article Report” as described in Step 1. Download the digitally signed PDF once it’s generated.
Submit CEIR Form
Timeframe: Day 1 Visit sancharsaathi.gov.in and open the CEIR section. Enter the device’s IMEI number(s), upload the police report PDF, and verify the request using an OTP sent to your new duplicate SIM.
Track Request
Timeframe: Within 24 hours After submission, you’ll receive a unique Request ID save it somewhere safe. It’s used both to track the blocking status and, later, to unblock the phone if it’s recovered. Blocking typically takes effect across all networks within 24 hours.
Dual SIM Phones
If your phone supports two SIM cards, it has two separate IMEI numbers. Enter both IMEI-1 and IMEI-2 in the CEIR form. If you block only one, the person who has your phone can simply switch to the second SIM slot and keep using it as if nothing happened.
How to Unblock Found Phones
Phones do turn up under a car seat, in a taxi, or recovered by the police after a CEIR location alert. But once blacklisted, the device won’t show any network signal, even with a valid SIM inserted.
To restore it:
- Go back to the Sanchar Saathi / CEIR portal
- Select the “Un-Block Found Mobile” option
- Enter the original Request ID generated when you blocked the device
- Verify your identity via OTP
The unblock usually takes effect within 2–4 hours, after which the phone works normally on any network again.
A word of caution: never share your Request ID or OTP with anyone who calls claiming to be from the police or your telecom provider offering to “help track” your phone. This is a known scam used to hijack the unblocking process.
FAQ’s
Can I file an e-FIR if my phone was snatched aggressively?
No. The online Lost Article Report only covers items misplaced or lost unknowingly. A violent snatching is robbery, a criminal offence call 112 and file a proper FIR at your local police station in person.
What if the police refuse to hand back my recovered phone?
Once police recover a stolen device, it becomes case evidence. You’ll typically need to file a Superdari application in the local magistrate’s court to get physical custody of it back.
Do I need the original phone bill or box to block the IMEI?
It helps but isn’t always mandatory the IMEI can also be checked via your Google or Apple account’s device history if you no longer have the box or invoice.
How long does CEIR blocking take to activate?
Blocking is usually processed within 24 hours of a verified submission, though it can occasionally take a little longer depending on your operator’s sync schedule.
Is there any fee for using the CEIR portal?
No, both blocking and unblocking through the CEIR/Sanchar Saathi portal are completely free government services.
Conclusion
Losing a phone is stressful, but the process to protect yourself is no longer complicated. The moment you notice your device is missing, treat it as a two-step job: get an official Lost Article Report from your state police portal, then head straight to the CEIR portal on Sanchar Saathi to block the IMEI. Doing both quickly ideally within the same day is what actually stops your phone from being resold or misused, since a blacklisted IMEI is useless on every Indian network regardless of which SIM gets inserted.
Keep your Request ID somewhere safe, because it’s the key to unblocking the device if it’s ever recovered. And remember that this entire online process is meant for phones that are genuinely lost if you were robbed or the phone was snatched by force, skip the portal and report it directly to the police as a criminal case. A few careful minutes now can save you from months of financial and privacy headaches later.
