MTNL DLT Registration Process: The Complete 2026 Guide
Do you want to send Bulk SMS in India?
Then you must complete DLT registration. This is a rule from the government (TRAI) to stop spam and keep mobile users safe.
The MTNL DLT portal (also called UCC MTNL) is a popular choice for businesses. This guide will show you exactly how to sign up on MTNL using the new 2026 rules.
Why do you need DLT registration?
In the past, anyone could send a fake SMS by just purchasing SMS plan from any bulk SMS provider. Now, every business must be verified through DLT portal – register your business, sender ID and SMS templates before sending. Without it, you can’t send bulk SMS to your customers.
Step 1: Register Your Business (Principal Entity)
The first step is to tell MTNL who you are.
- Visit the Website: Go to the MTNL DLT Portal.
- Sign Up: Click “Register Now” and select “As Enterprise.”
- Enter Details: Use your Business PAN card number. Make sure the name you type matches your PAN card exactly.
- Upload Documents: You will need to upload:
- Business PAN Card.
- GST Certificate or Shop License.
- Letter of Authorization (LOA): This is a paper that says you are allowed to handle the account. You can download the LOA document here.
- Select Your Telemarketer: You must link your business entity to a registered bulk SMS provider in India.
- Search for: Digimiles India Private Limited
- Enter Telemarketer ID: 1102377110000011178
- Pay the Fee: As of 2026, there is a registration fee of ₹5,900 (including GST). This is now an annual fee to keep your account active.
How long does it take? MTNL usually takes 48 to 72 hours to check your documents and approve your account.
Step 2: PE-TM Chain Binding
Even after you register, you must “bind” your account to your SMS provider so the system knows they are authorized to send messages for you.
- Log in to your MTNL portal.
- Go to the “Telemarketer” or “Manage Chain” menu.
- Add a “New Chain.”
- Enter the Digimiles ID: 1102377110000011178.
- Once you click submit, the “chain” is created. This tells the MTNL blockchain that Digimiles is your official partner.
Step 3: Register Your Header (Sender ID)
A “Header” is the 6-character name that appears at the top of the SMS on a phone (like AD-MTNLTK).
- Transactional SMS: These use 6 letters (like DIGIML).
- Promotional SMS: These use 6 numbers based on your industry.
- The 2026 Suffix Rule: MTNL now adds a small letter to the end of your header. For example
- -T for Transactional
- -P for Promotional
This helps customers know what kind of message they are getting.
Step 3: Create Your SMS Templates
You must follow a strict format when registering SMS templates.
The New Mandatory Variable Tags
In the past, you used {#var#} for everything. That no longer works. You must now use specific tags so the system knows what data you are sending:
{#numeric#}: Use this for OTPs, amounts, or dates.{#alphanumeric#}: Use this for Order IDs or Tracking numbers.{#url#}: Use this for website links (The link must be whitelisted first!).{#email#}: Use this for your contact email.
Example of a Good Template:
“Hello! Your OTP for login is
{#numeric#}. Please do not share this with anyone. Team Digimiles.”
Step 4: URL Whitelisting (Mandatory)
In 2026, you cannot just put any link in an SMS. You must “whitelist” your website domain on the MTNL portal.
- Go to the Header/Template section.
- Add your website link (e.g., https://yourbrand.com).
- Once MTNL approves it, you can use it in your SMS. If you use a link that isn’t approved, your message will be blocked automatically.
Troubleshooting: Why is my MTNL DLT rejected?
| Error Message | What it means | How to fix it |
| Invalid PAN | Name doesn’t match PAN. | Re-type the name exactly as it is on the card. |
| Template Mismatch | You used the wrong tag. | Change {#var#} to {#numeric#} or {#url#}. |
| Whitelisting Failed | Your link isn’t approved. | Go to the URL Whitelisting tab and add your domain. |
| Missing Brand Name | No brand name at the end. | Always end your template with your company name. |
People Also Ask (FAQs)
1. Is MTNL DLT registration free?
No. In 2026, you must pay ₹5,900 (inclusive 18% GST) for the registration.
2. Can I use my Jio DLT ID on MTNL?
Yes! If you are already registered on Jio, you do not need to register again on MTNL. You can just use your Entity ID to log in as a “Registered” user.
3. How do I contact MTNL DLT support?
You can email their helpdesk at support.dlt@pinnacle.in. Be sure to include your Request ID so they can help you faster.
4. What happens if I don’t register?
If you don’t have a DLT ID, your SMS will not be delivered. Indian telecom companies will block any business message that does not come from a registered DLT account.
5. Do I need to upload customer consent?
Only if you are sending Promotional (Marketing) SMS. For OTPs and account alerts, you don’t need to upload a customer list. For more details, you can contact us at 9916011355.
6. Why do I need to add the Digimiles Telemarketer ID?
Think of the MTNL portal as your “license” and Digimiles as your “vehicle.” You need to link your license to your vehicle to start driving. Without adding the TM ID (1102377110000011178), your SMS gateway won’t have permission to deliver your messages.
7. Can I add more than one Telemarketer?
Yes. If you use different providers for different services, you can add multiple Telemarketer IDs to your MTNL account.
8. Is there additional fee for adding a Telemarketer?
No, adding or linking a Telemarketer to your MTNL portal is free. The only main fee is the initial registration fee.
Final Thoughts
Setting up DLT might feel like a lot of work, but it makes your business look professional and safe. If you need help connecting your approved templates to an API for Bulk SMS, our team at Digimiles is ready to help you!
