{"id":5630,"date":"2026-09-07T15:55:35","date_gmt":"2026-09-07T10:25:35","guid":{"rendered":"https:\/\/callerdesk.io\/blog\/?p=5630"},"modified":"2026-09-07T15:55:38","modified_gmt":"2026-09-07T10:25:38","slug":"dlt-registration-in-india","status":"publish","type":"post","link":"https:\/\/callerdesk.io\/blog\/dlt-registration-in-india\/","title":{"rendered":"DLT Registration in India: Complete Step-by-Step Guide"},"content":{"rendered":"\n

Sending an SMS to a customer sounds simple.<\/p>\n\n\n\n

You write the message, add the customer’s number, click Send<\/strong>, and expect it to arrive.<\/p>\n\n\n\n

But if you are a business sending SMS in India, there is another step you need to know about: DLT registration<\/strong>.<\/p>\n\n\n\n

Without proper DLT registration, your business SMS may not reach your customers.<\/p>\n\n\n\n

So, what exactly is DLT registration? Who needs it? What documents do you need? How much does it cost? And how do you register?<\/p>\n\n\n\n

This guide explains the complete DLT registration process<\/strong> in simple language, including the latest requirements and changes businesses should know about in 2026.<\/p>\n\n\n\n

What Is DLT Registration?<\/strong><\/h2>\n\n\n\n

DLT stands for Distributed Ledger Technology<\/strong>.<\/p>\n\n\n\n

If you want to understand the technology behind DLT, you can read our detailed guide on what DLT means<\/strong><\/a>.<\/strong><\/p>\n\n\n\n

For SMS, however, you don’t need to understand all the technical details.<\/p>\n\n\n\n

DLT registration is the process of registering your business, sender ID, and SMS templates on a telecom DLT platform before sending commercial SMS in India.<\/strong><\/p>\n\n\n\n

The system was introduced under TRAI’s Telecom Commercial Communications Customer Preference Regulations (TCCCPR), 2018<\/strong>.<\/a><\/p>\n\n\n\n

The basic idea is simple.<\/p>\n\n\n\n

Before a commercial SMS reaches a customer, the telecom network checks whether the sender and message match the information registered on the DLT platform.<\/p>\n\n\n\n

This process is commonly known as scrubbing<\/strong>.<\/p>\n\n\n\n

Your SMS generally needs to match three important things:<\/p>\n\n\n\n

    \n
  1. Your business<\/strong> \u2013 registered as a Principal Entity<\/li>\n\n\n\n
  2. Your sender ID<\/strong> \u2013 registered as a Header<\/li>\n\n\n\n
  3. Your message<\/strong> \u2013 registered as a Content Template<\/li>\n<\/ol>\n\n\n\n

    If these details don’t match the DLT records, the message can be rejected instead of being delivered.<\/p>\n\n\n\n

    Who Needs DLT Registration?<\/strong><\/h2>\n\n\n\n

    If your business sends commercial SMS in India, you generally need to complete the applicable DLT registration and compliance requirements.<\/p>\n\n\n\n

    This can include businesses sending:<\/p>\n\n\n\n

      \n
    • OTPs and verification codes<\/li>\n\n\n\n
    • Order confirmations<\/li>\n\n\n\n
    • Delivery updates<\/li>\n\n\n\n
    • Payment notifications<\/li>\n\n\n\n
    • Appointment reminders<\/li>\n\n\n\n
    • Service alerts<\/li>\n\n\n\n
    • Promotional offers<\/li>\n\n\n\n
    • Discount messages<\/li>\n\n\n\n
    • School or coaching fee reminders<\/li>\n\n\n\n
    • Loan and EMI notifications<\/li>\n\n\n\n
    • Insurance-related communications<\/li>\n<\/ul>\n\n\n\n

      DLT requirements are not limited to large companies.<\/p>\n\n\n\n

      A small startup sending a few hundred SMS messages can also need to follow the same framework.<\/p>\n\n\n\n

      The type and volume of your business do not automatically remove the requirement.<\/p>\n\n\n\n

      Principal Entity vs Telemarketer<\/strong><\/h3>\n\n\n\n

      You will usually come across two important terms during the DLT registration process:<\/p>\n\n\n\n

      Principal Entity (PE):<\/strong>
      <\/strong>The business or organisation that wants to send the SMS.<\/p>\n\n\n\n

      Telemarketer (TM):<\/strong>
      <\/strong>The telecom or SMS service provider that helps transmit the messages.<\/p>\n\n\n\n

      For example, suppose you run an online store and use an SMS provider to send order updates.<\/p>\n\n\n\n

      Your online store is the Principal Entity<\/strong>.<\/p>\n\n\n\n

      Your SMS provider acts as the Telemarketer<\/strong>.<\/p>\n\n\n\n

      You register your business as the Principal Entity, while your SMS provider provides the information needed to connect the two.<\/p>\n\n\n\n

      What Happens If You Don’t Complete DLT Registration?<\/strong><\/h2>\n\n\n\n

      The biggest problem is simple:<\/p>\n\n\n\n

      Your SMS may not be delivered.<\/strong><\/p>\n\n\n\n

      Imagine a customer is trying to log in to your website but never receives the OTP.<\/p>\n\n\n\n

      Or you send an important payment notification, but the customer never sees it.<\/p>\n\n\n\n

      Or your marketing team launches an SMS campaign that appears to be sent successfully, but customers don’t receive the messages.<\/p>\n\n\n\n

      DLT compliance can be one of the reasons behind such delivery problems.<\/p>\n\n\n\n

      There can also be regulatory consequences for businesses that violate applicable telecom communication rules.<\/p>\n\n\n\n

      TRAI’s enforcement framework includes actions against telecom resources, SMS headers, and senders involved in prohibited or non-compliant communications.<\/p>\n\n\n\n

      This is why businesses should not treat DLT registration as optional paperwork.<\/p>\n\n\n\n

      Documents Required for DLT Registration<\/strong><\/h2>\n\n\n\n

      Before starting your registration, keep the required documents ready.<\/p>\n\n\n\n

      Having the correct documents can save you from unnecessary rejection and delays.<\/p>\n\n\n\n

      Commonly requested documents include:<\/p>\n\n\n\n

      Document<\/strong><\/td>Who May Need It<\/strong><\/td>Purpose<\/strong><\/td><\/tr>
      PAN card<\/td>Businesses and entities<\/td>Business identification<\/td><\/tr>
      GST certificate<\/td>GST-registered businesses<\/td>Business verification<\/td><\/tr>
      Certificate of Incorporation\/Registration<\/td>Companies, LLPs, societies, trusts, etc.<\/td>Proof of registration<\/td><\/tr>
      Partnership deed<\/td>Partnership firms<\/td>Business verification<\/td><\/tr>
      Authorisation letter<\/td>Businesses\/entities<\/td>Authorises the signatory<\/td><\/tr>
      ID proof of authorised signatory<\/td>Authorised signatory<\/td>Identity verification<\/td><\/tr>
      Business address proof<\/td>Businesses\/entities<\/td>Address verification<\/td><\/tr>
      TAN<\/td>Where applicable<\/td>Tax-related verification<\/td><\/tr>
      Company seal\/stamp<\/td>Where required<\/td>Document authentication<\/td><\/tr>
      Mobile number and email<\/td>Authorised person<\/td>OTP and communication<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

      The exact documents can vary depending on your business structure and the DLT portal you use.<\/p>\n\n\n\n

      3 Things to Check Before Uploading Documents<\/strong><\/h3>\n\n\n\n

      1. Keep your business name consistent<\/strong><\/p>\n\n\n\n

      Your business name should match across your important documents and the registration application.<\/p>\n\n\n\n

      Even small differences in the name can create verification problems.<\/p>\n\n\n\n

      2. Upload clear documents<\/strong><\/p>\n\n\n\n

      Make sure scans and photographs are readable and meet the portal’s file-size requirements.<\/p>\n\n\n\n

      3. Keep the authorised person available<\/strong><\/p>\n\n\n\n

      The authorised signatory may need to complete OTP or other verification steps during registration.<\/p>\n\n\n\n

      Which DLT Platform Should You Use?<\/strong><\/h2>\n\n\n\n

      Several telecom operators provide DLT platforms.<\/p>\n\n\n\n

      Some commonly used platforms include:<\/p>\n\n\n\n

      Telecom Operator<\/strong><\/td>DLT Platform<\/strong><\/td><\/tr>
      Reliance Jio<\/td>TrueConnect<\/td><\/tr>
      Vodafone Idea<\/td>Vilpower<\/td><\/tr>
      Airtel<\/td>Airtel Commercial Communication<\/td><\/tr>
      BSNL<\/td>UCC BSNL<\/td><\/tr>
      Tata Teleservices<\/td>Tata DLT<\/td><\/tr>
      Videocon\/VMIPL<\/td>Smartping<\/td><\/tr>
      MTNL<\/td>MTNL DLT<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

      Do You Need to Register on Every DLT Platform?<\/strong><\/h3>\n\n\n\n

      No.<\/strong><\/p>\n\n\n\n

      You generally need to register your Principal Entity on one DLT platform<\/strong>.<\/p>\n\n\n\n

      The DLT ecosystem is designed so that registered entities can be recognised across participating telecom networks.<\/p>\n\n\n\n

      So, don’t waste time creating multiple entity registrations simply because your customers use different telecom operators.<\/p>\n\n\n\n

      Choose one suitable DLT portal and complete your registration there.<\/p>\n\n\n\n

      How Much Does DLT Registration Cost?<\/strong><\/h2>\n\n\n\n

      There is no single fee that applies to every operator.<\/p>\n\n\n\n

      DLT charges can vary depending on the telecom operator and may change over time.<\/p>\n\n\n\n

      Depending on the platform:<\/p>\n\n\n\n

        \n
      • Entity registration may have a one-time fee.<\/li>\n\n\n\n
      • Some operators may provide registration without an entity registration fee.<\/li>\n\n\n\n
      • Header registration is generally not separately charged on the DLT portal.<\/li>\n\n\n\n
      • Content template registration is generally free on the portal.<\/li>\n\n\n\n
      • Your SMS provider may charge separate SMS or scrubbing-related fees.<\/li>\n<\/ul>\n\n\n\n

        Some DLT portals have historically charged fees in the range of a few thousand rupees, while others may offer registration free of charge.<\/p>\n\n\n\n

        Always check the current fee on the DLT portal before making a payment.<\/strong><\/p>\n\n\n\n

        Also be careful with third-party companies that charge large amounts simply to \u201ccomplete DLT registration\u201d for you. In many cases, businesses can complete the process themselves if they have the required documents and information.<\/p>\n\n\n\n

        DLT Registration Process: Step by Step<\/strong><\/h2>\n\n\n\n

        Now let’s get to the part most businesses are looking for.<\/p>\n\n\n\n

        The DLT registration process can be broken into four main steps:<\/p>\n\n\n\n

          \n
        1. Register your business as a Principal Entity<\/li>\n\n\n\n
        2. Register your SMS Header<\/li>\n\n\n\n
        3. Register your Content Templates<\/li>\n\n\n\n
        4. Connect your SMS provider through the PE-TM chain<\/li>\n<\/ol>\n\n\n\n

          Let’s look at each one.<\/p>\n\n\n\n

          Step 1: Register as a Principal Entity<\/strong><\/h3>\n\n\n\n

          First, choose a DLT platform and start the Principal Entity registration<\/strong> process.<\/p>\n\n\n\n

          You will need to provide information about your business and upload the required documents.<\/p>\n\n\n\n

          Depending on the portal, you may need to provide details such as:<\/p>\n\n\n\n

            \n
          • Business name<\/li>\n\n\n\n
          • Business type<\/li>\n\n\n\n
          • PAN<\/li>\n\n\n\n
          • GST details<\/li>\n\n\n\n
          • Address<\/li>\n\n\n\n
          • Authorised person’s details<\/li>\n\n\n\n
          • Mobile number<\/li>\n\n\n\n
          • Email address<\/li>\n<\/ul>\n\n\n\n

            You will also need to complete the required verification steps.<\/p>\n\n\n\n

            Once your registration is approved, you receive a Principal Entity ID (PE ID)<\/strong>.<\/p>\n\n\n\n

            Think of the PE ID as your business’s unique identity on the DLT platform.<\/p>\n\n\n\n

            Save this ID carefully.<\/strong><\/p>\n\n\n\n

            Your SMS provider will usually need it to connect your account and send messages on your behalf.<\/p>\n\n\n\n

            Step 2: Register Your SMS Header<\/strong><\/h3>\n\n\n\n

            Next comes your Header<\/strong>, also commonly called your sender ID.<\/p>\n\n\n\n

            This is the identifier associated with your business when customers receive your SMS.<\/p>\n\n\n\n

            For example, a brand may use a sender name related to its business name.<\/p>\n\n\n\n

            The important thing is that the header must follow the applicable DLT rules and be relevant to your registered entity.<\/p>\n\n\n\n

            A generic sender name may not be approved simply because it sounds professional.<\/p>\n\n\n\n

            Your header category also matters because different types of communication are treated differently under the telecom framework.<\/p>\n\n\n\n

            Header Suffixes<\/strong><\/h3>\n\n\n\n

            Under the newer framework, telecom operators can append category suffixes to headers during message processing.<\/p>\n\n\n\n

            These categories include:<\/p>\n\n\n\n

            Suffix<\/strong><\/td>Category<\/strong><\/td>Example Use<\/strong><\/td><\/tr>
            -T<\/strong><\/td>Transactional<\/td>Certain transaction-related messages<\/td><\/tr>
            -S<\/strong><\/td>Service<\/td>Order or service updates<\/td><\/tr>
            -P<\/strong><\/td>Promotional<\/td>Marketing and promotional messages<\/td><\/tr>
            -G<\/strong><\/td>Government<\/td>Government communications<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

            You generally do not manually add these suffixes yourself.<\/p>\n\n\n\n

            The telecom system applies the relevant category based on the registered communication type.<\/p>\n\n\n\n

            This is why choosing the correct message category during registration is important.<\/p>\n\n\n\n

            Step 3: Register Your SMS Content Templates<\/strong><\/h3>\n\n\n\n

            This is one of the most important parts of DLT registration.<\/p>\n\n\n\n

            A content template<\/strong> is the message you plan to send to customers.<\/p>\n\n\n\n

            For example:<\/p>\n\n\n\n

            Dear {#var#}, your OTP for login is {#var#}. Valid for 10 minutes. Do not share it with anyone.<\/p>\n\n\n\n

            The parts that change, such as the customer’s name or OTP, are represented using variables.<\/p>\n\n\n\n

            Why Are Templates Required?<\/strong><\/h3>\n\n\n\n

            The DLT system uses registered templates to check whether the SMS being sent matches an approved message format.<\/p>\n\n\n\n

            If the actual SMS is significantly different from the registered template, the message may not pass the required checks.<\/p>\n\n\n\n

            Important Template Rules<\/strong><\/h3>\n\n\n\n

            When creating your templates, pay attention to the following:<\/p>\n\n\n\n

            1. Use variables correctly<\/strong><\/p>\n\n\n\n

            Dynamic information such as names, order numbers, amounts, OTPs, or dates may need to be represented using approved variables.<\/p>\n\n\n\n

            2. Pre-tag variables where required<\/strong><\/p>\n\n\n\n

            TRAI introduced requirements around pre-tagging variables in SMS content templates.<\/p>\n\n\n\n

            This helps identify what type of information will be inserted into each variable.<\/p>\n\n\n\n

            For example, a variable may represent:<\/p>\n\n\n\n