DoT Warns: IMEI Tampering Can Lead to Jail & ₹50 Lakh Fine

The Department of Telecommunications (DoT) has issued a strong caution to citizens against IMEI tampering and misuse of telecommunication identifiers, warning that such actions can attract up to three years’ imprisonment and fines of ₹50 lakh. This announcement underscores the government’s determination to safeguard India’s rapidly expanding digital ecosystem.

India has seen several alarming incidents recently. Earlier in 2026, Delhi Police uncovered a syndicate that defrauded citizens of nearly ₹100 crore by rotating IMEIs and using SIM boxes to impersonate officials. The government also reported blocking over 15 lakh SIM cards and nearly 6 lakh IMEIs linked to cyber fraud, preventing scams worth more than ₹11,000 crore.

Why IMEI Tampering Matters

An IMEI number is essentially the fingerprint of your mobile phone. It’s a 15‑digit code that uniquely identifies your handset, no matter which SIM card is inside. Think of it like a car’s chassis number — it tells the network exactly which device is being used. Alongside IMEI, there are other telecommunication identifiers such as SIM card numbers and Calling Line Identity (CLI), which help telecom networks trace calls, messages, and data back to the right subscriber and device.

Tampering happens when fraudsters overwrite or change the IMEI using illegal software or hardware tools, making one phone appear as another. In some cases, criminals use SIM boxes that hold dozens of SIM cards and rotate IMEIs to disguise international calls as local ones. Others procure SIM cards with fake documents or manipulate CLI so scam calls look genuine. These tricks allow cybercriminals to bypass security, impersonate legitimate users, and carry out fraud undetected.

For everyday users, the takeaway is simple: your phone’s IMEI and your SIM are your responsibility. Verifying your device on the Sanchar Saathi portal, avoiding second‑hand phones without IMEI checks, and never sharing SIM cards are crucial steps to stay safe in India’s digital ecosystem.

International Mobile Equipment Identity (IMEI) is a unique identifier for every mobile device. Tampering with it or misusing SIM cards compromises:

• Citizen safety by enabling fraud and cybercrime.
• Network integrity by allowing unauthorized devices to operate.
• National security by creating loopholes for malicious actors.

“Tampering with IMEI numbers or using devices with unauthorised or tampered telecommunication identifiers is a punishable offence under the Telecommunications Act, 2023.”

Legal Provisions Under the Telecommunications Act, 2023

• Section 42(3)(c): Prohibits tampering with telecommunication identifiers.
• Section 42(3)(e): Prohibits obtaining SIMs or identifiers through fraud, cheating, or impersonation.
• Section 42(7): Makes violations cognizable and non-bailable.
• Section 42(6): Punishes abettors and promoters of such offences equally.

What Citizens Should Avoid

• Tampered devices: Using modems, SIM boxes, or equipment with configurable IMEIs.
• Fraudulent SIMs: Procuring SIM cards with fake documents or impersonation.
• SIM misuse: Selling, transferring, or loaning SIMs to others for unlawful activity.
• Identifier manipulation: Using apps or websites to alter Calling Line Identity (CLI).

Note: Even loaning a SIM card that is later misused can make the original subscriber legally liable.

Sanchar Saathi: Your Digital Shield

The government urges citizens to use the Sanchar Saathi portal and mobile app to:

• Verify IMEI details (brand, model, manufacturer).
• Secure mobile connections against fraud.
• Report suspicious activity.

Download the app:

• Android
• iOS

Building a Safer Telecom Ecosystem

This initiative is part of India’s broader effort to strengthen telecom security and protect citizens from cyber fraud. Compliance with the Telecommunications Act, 2023 is not just a legal requirement—it is essential for ensuring a safe, trusted, and resilient digital environment.