Sanchar Saathi App: How to Block a Lost Mobile

Losing a smartphone today feels like losing your entire digital world — photos, contacts, banking apps, UPI, everything becomes vulnerable. But now there’s a powerful solution from the Government of India. The Sanchar Saathi App allows users to track, block, authenticate, and secure their mobile phones easily.

In this guide, you’ll learn exactly how Sanchar Saathi works. Moreover, you’ll discover how to block a stolen phone, how to unblock it, and how to check if a device is genuine.

Sanchar Saathi is an official DoT (Department of Telecommunications) platform designed to improve mobile security and prevent smartphone fraud in India.

The app allows users to:

• Block lost or stolen mobile phones
• Track their device using IMEI
• Verify if a phone is original or fake
• Identify fraud SIM usage
• Protect personal data

>> It is one of India’s most powerful digital safety tools for smartphone users.

• Check out our latest guide on OxygenOS 16 for more tech updates.

Sanchar Saathi works through a central IMEI database called CEIR (Central Equipment Identity Register).

When you submit a block request:

• CEIR blocks your device’s IMEI nationwide.
•  No telecom network allows the phone to work after the block.
•  If someone inserts a new SIM, the system detects it
•  Operators share trace updates with authorities

In simple words:

>> If your phone is stolen, it becomes useless for the thief.

 Block Lost or Stolen Mobile Phones

Submit a request and your device IMEI gets instantly blacklisted.

Track Device Activity

Telecom operators share updates when your IMEI connects to a network.

 Unblock Your Phone After Recovery

If you get your phone back, you can easily request unblocking.

Check Phone Authenticity (KYM – Know Your Mobile)

Enter the IMEI and check:

• Check whether the device is original.
• Find out if telecom operators have blacklisted it.
• See whether it is reported as stolen.

 SIM Fraud Detection

Alerts users about suspicious SIM activity.

 IMEI Cloning Protection

Detects and blocks fake/cloned devices.

>> A complete security package for every smartphone user in India.

Step 1: Visit the official site

https://sancharsaathi.gov.in

Step 2: Open CEIR Services

Click on “Block Lost / Stolen Mobile”

Step 3: Fill the Form

Provide:

• IMEI number
• Mobile number
• Device details
• FIR copy (optional but helpful)

Step 4: Verify your OTP

Step 5: Submit the Request

You will receive a Request ID to track the status.

1. Visit Sanchar Saathi → CEIR
2. Select “Unblock Found Mobile”
3. Enter your Request ID
4. Provide the reason for unblocking
5. Submit

The CEIR system activates your IMEI again within 24–48 hours.

KYM helps you check if a mobile phone is genuine.

You can use it via:

• Mobile App
• SMS: Send KYM  to 14422
• Website

Results include:

• Device model
• Manufacturer
• Status (blacklisted/valid/duplicate)

• Prevents fraud and mobile theft
• Protects personal data
• Helps recover lost devices
• Identifies fake/duplicate IMEI phones
• Strengthens national mobile security

It is completely free and approved by the Government of India.

Always block your phone immediately after it is lost. The faster you act, the higher the chances of recovery.

• For advanced mobile anti-theft protection, you can check this No-Signal RFID Sleeve on Amazon: https://amzn.to/4pOOSoV

The Sanchar Saathi App is a must-have security tool for every smartphone user in India. From blocking lost devices to detecting fraud and checking mobile authenticity, the app offers robust protection.

If you want to secure your digital life and stay safe from mobile fraud, Sanchar Saathi is essential.