DLT Registration Guide for Businesses in India: Step-by-Step

If you have tried sending a bulk SMS campaign in India recently and watched your messages fail delivery, there is a good chance your DLT registration is incomplete. Since TRAI made DLT registration mandatory in 2021, it has become the single most important prerequisite for commercial messaging in India — and yet it trips up businesses at every stage.

This guide walks you through the entire DLT registration process, from understanding why it exists to getting your headers and templates approved and actually sending your first compliant campaign.

What Is DLT and Why Did TRAI Introduce It?

DLT stands for Distributed Ledger Technology. TRAI introduced the DLT framework to combat spam and SMS fraud that had reached crisis levels in India — billions of unsolicited commercial messages were being sent every year with no way to trace the sender.

Under the DLT framework, every commercial SMS in India must pass through a verified chain:

• The Principal Entity (PE) — your business — must be registered
• The Telemarketer (TM) — your SMS service provider — must be registered
• The Header (Sender ID) you use must be registered under your entity
• The Template (the actual message content) must be pre-approved

Every link in this chain is stored on a distributed ledger that any telecom operator can verify in real time. If any link is missing, the message is blocked before it reaches the recipient. For a deeper look at how this chain works end to end, see our PE-TM Binding Chain Guide.

Step 1: Choose Your DLT Platform

You only need to register on one DLT platform — your registration is valid across all telecom operators in India. The approved DLT platforms are:

• Vodafone Idea (Vilpower) — vilpower.in
• Airtel — dlt.airtel.in
• Jio — trueconnect.jio.com
• BSNL — smsheader.bsnl.co.in
• Tata Communications — tattatel.co.in
• Videocon / ACT — smartping.com

Most businesses register on Airtel or Vodafone Idea simply because their interfaces are more user-friendly, but there is no functional difference in terms of compliance or delivery.

Step 2: Gather Your Documents

Before you start the registration form, keep these ready:

For Private Limited / LLP / Partnership:

• GST Registration Certificate
• PAN Card of the Company
• Certificate of Incorporation
• Authorised Signatory Aadhaar and PAN
• Authorisation Letter / Board Resolution

For Sole Proprietorship:

• GST Certificate (or Shop Establishment Certificate)
• Proprietor PAN and Aadhaar

For Government / NGO Entities:

• Registration certificate from the relevant authority
• Authorised signatory proof

Having scanned copies of all documents ready before you begin will save you from a half-completed registration sitting in limbo.

Step 3: Register as a Principal Entity

Go to your chosen DLT platform and look for the "New Registration" or "Register as Enterprise / Principal Entity" option.

Fill in:

1. Legal entity name — exactly as it appears on your GST certificate
2. Entity type — Private Limited, LLP, Proprietorship, Government, NGO, etc.
3. PAN number
4. GST number
5. Registered address
6. Authorised signatory details
7. Contact email and mobile — this is where your credentials will be sent, so use a business email

Upload the required documents, review all details, and submit. You will receive a reference number for tracking.

Approval timeline: 1–3 business days in most cases. If rejected, the platform will indicate which document or field has an issue.

Step 4: Register Your Headers (Sender IDs)

Once your entity is approved, log in and go to the Headers section.

A header is the 6-character alphabetic sender ID that appears in the "From" field of your SMS — for example, GETCLK, AMAZON, ICICIB.

When registering a header:

• Choose the header type: Transactional, Promotional, or Service (Implicit / Explicit)
• Enter your desired 6-character header
• It must clearly represent your brand — GETCLK is acceptable for Get Click Media; ABCXYZ is not

You can register multiple headers under one entity — useful if you have different brands, products, or communication types. For a detailed breakdown of header types and when to use each, refer to our Sender ID Registration Guide.

Step 5: Register Your SMS Templates

This is where most businesses spend the most time — and where most compliance issues arise.

Go to the Templates section and click Add New Template. For each template:

1. Select the header it will be sent from
2. Choose the category — Transactional, Promotional, or Service
3. Enter the template content — use {#var#} for any dynamic variable
4. Add a description explaining the use case

Example of a correctly formatted template:

Your OTP for login is {#var#}. Valid for 10 minutes. Do not share with anyone. - GETCLK

The {#var#} placeholder is how TRAI-approved templates handle personalisation — the actual value (the OTP, the name, the order number) is substituted at send time. For the full guide on writing templates that get approved quickly, see our SMS Template Approval Guide.

Template approval timeline: 2–5 business days, though many platforms now offer near-instant auto-approval for standard transactional templates.

Step 6: Connect Your SMS Provider (Telemarketer Binding)

After your entity, headers, and templates are approved, the final step is linking your SMS service provider (the Telemarketer) to your DLT entity.

Your SMS provider will give you their Telemarketer ID registered on the DLT platform. You enter this ID in the TM Binding section of your DLT account to authorise them to send messages on your behalf.

Without this binding, even a fully registered entity with approved headers and templates cannot send SMS — the network will reject the traffic at the operator level.

Common Mistakes That Delay or Block Registration

1. Entity name mismatch: The name on your DLT registration must match your GST certificate exactly. Even a minor difference — "Pvt. Ltd." vs "Private Limited" — can cause rejection.

2. Using the wrong template category: Sending promotional content on a transactional template is a compliance violation that can result in your header being blacklisted. Understand the difference before you submit templates — see Transactional vs Promotional SMS for clarity.

3. Missing dynamic variable syntax: Any part of your message that changes per recipient must use the {#var#} format. Fixed text that looks like it changes (hardcoded phone numbers, for example) will still pass — but if you later try to personalise it, the template won't match.

4. Template too generic: Templates like "Get our special offer today" without brand identification or a clear call to action are often rejected. Include your brand name and a specific action.

5. Not registering enough templates upfront: Register all the templates you think you will need in the next 6 months. Approval takes a few days each time, and waiting for a template mid-campaign is painful.

After Registration: What to Check Before Your First Campaign

Before you send a single message, verify:

• Entity status is Approved (not Pending or Under Review)
• All headers show Active status
• All templates are Approved
• Your SMS provider's TM ID is bound to your entity
• Your SMS provider has mapped your approved headers and templates on their platform

Once all five are confirmed, your first compliant campaign is ready to go. For a full picture of ongoing compliance obligations beyond registration, read our TRAI SMS Compliance Guide.

Conclusion

DLT registration is not optional and it is not complicated — it just requires patience and attention to detail. The businesses that struggle with it are almost always the ones who rushed through the process, skipped document verification, or tried to send campaigns before all approvals were in place.

Register once, do it right, and DLT becomes invisible infrastructure that your campaigns run on without a second thought. If you are ready to start sending compliant bulk SMS campaigns, explore our Bulk SMS Service to see how Get Click Media handles the technical side.