DLT Registration for Bulk SMS: A Step-by-Step Guide
DLT registration for bulk SMS lets your business send commercial SMS legally in India. We help you register your entity, sender ID and templates, check your documents before you submit and fix any rejection, with no service charge from us.
DLT registration for bulk SMS means registering your business, your 6-character header and your message templates on an operator DLT portal under TRAI's TCCCPR 2018. Keep your PAN, GST certificate or business proof, a letter of authorisation and the authorised person's ID ready. Entity registration costs about ₹5,900, and approval usually takes 2 to 7 working days.
Free help from us
We fill and check the forms with you. Only operator fees are payable.
One portal, all operators
Register once on Jio, Airtel, Vi or BSNL and it is shared across networks.
2–7 working days
Typical approval time for entity, header and templates on most portals.
Rejections fixed
We read the rejection note and resubmit with the right details or wording.
What you register on DLT
DLT (Distributed Ledger Technology) is the system Indian operators use to check every commercial SMS before delivery. It was introduced under TRAI's TCCCPR 2018 rules to cut spam and fraud. When you send a message, the operator matches your entity, header and template against the ledger. If anything does not match, the SMS is blocked. Your registration has four parts.
- Principal Entity: your business, verified against your PAN and business proof.
- Header: the 6-character sender ID people see, such as KOVAIM.
- Templates: the fixed wording of each message, with {#var#} where values change.
- Whitelisted links and numbers: every URL, APK link or call-back number you plan to use.
Documents needed for DLT registration for bulk SMS
The legal name must match exactly across all documents and the form. Most rejections start with a small spelling difference.
- PAN card of the business (or of the proprietor for a sole proprietorship).
- GST certificate, or other business proof such as a Udyam certificate, shop and establishment licence or incorporation certificate.
- Letter of authorisation on company letterhead, signed and stamped, naming the person who will manage DLT.
- Photo ID of the authorised person, such as Aadhaar, PAN or passport.
- A business email and mobile number for portal OTP checks.
Fees and timelines
Entity registration costs about ₹5,900 including GST, paid once to the operator. The BSNL portal charges about ₹3,300. Each header costs about ₹590 a year. Templates are free. Entity approval usually takes 2 to 7 working days, and headers and templates follow on a similar timeline. We charge nothing for our help.
Plan for about one to two weeks from first submission to first live SMS. A clinic or shop that has its PAN, GST certificate and signed letter ready on day one often finishes faster. If a template is rejected, the clock restarts for that template only.
Header suffixes and URL whitelisting
Since 6 May 2025, operators add a suffix to every header: -P for promotional, -S for service, -T for transactional and -G for government. So KOVAIM sending an order update shows as AD-KOVAIM-S on the phone. Register the right category for each template, because the suffix follows it.
Since 1 October 2024, only whitelisted URLs, APK links, OTT links and call-back numbers can appear in an SMS. Public URL shorteners are blocked. Use your own domain, register it on the portal, and add each new domain before you use it in a template.
Common rejection reasons and fixes
- Name mismatch between PAN, GST and the form: copy the legal name exactly as printed on PAN.
- Unsigned or unstamped letter of authorisation: re-sign it on letterhead and upload a clear scan.
- Generic header like OFFERS or ALERTS: choose a header based on your brand name or its short form.
- Promotional words in a service template: move offer wording to a promotional template.
- Too many variables: keep the wording fixed and use {#var#} only for names, amounts, dates and codes.
- Shortened or unregistered link: use your full whitelisted domain.
Sending outside India too?
We also send SMS and WhatsApp messages to customers abroad, with help on each country's sender ID and consent rules.
How it works
Pick a DLT portal
Choose Jio, Airtel, Vi or BSNL. One registration is shared with every operator.
Register your entity
Upload PAN, business proof, authorisation letter and ID, then pay the operator fee.
Add headers and templates
Apply for your 6-character header and submit each template under the right category.
Link your IDs to us
Share your entity ID, header and template IDs. We add them to your panel for sending.
Frequently asked questions
Is DLT registration mandatory for bulk SMS?
Yes. TRAI's TCCCPR 2018 rules require every business sending commercial SMS in India to register its entity, headers and templates on an operator DLT portal. Operators block messages that do not match a registered template and header, so sending without DLT is not possible on legitimate routes.
How much does DLT registration cost?
Entity registration costs about ₹5,900 including GST, paid once to the operator. The BSNL portal charges about ₹3,300. Each header costs about ₹590 per year, and template registration is free. These fees go to the operator. We help you with the process at no service charge.
How long does DLT approval take?
Entity approval usually takes 2 to 7 working days. Headers and templates are often approved on a similar timeline once the entity is active. Delays mostly come from document mismatches or template wording issues, which is why we check everything before you submit.
Can I use one DLT registration with any SMS provider?
Yes. Your DLT entity, headers and templates belong to your business and are shared across operators. If you move to a new provider, you share your entity ID and template IDs with them and link them on the portal. You do not need to register again.
Why was my DLT template rejected?
Common reasons are promotional words in a service template, too many variables, a shortened or unregistered link, or a header that does not match your brand. Read the rejection note, fix that one issue and resubmit. Share the note with us and we will suggest the correct wording.
What do -P, -S, -T and -G mean after a sender ID?
Since 6 May 2025, operators add a suffix to show the message category: -P for promotional, -S for service, -T for transactional and -G for government. For example, AD-KOVAIM-S is a service message from the header KOVAIM. The suffix comes from the category of the approved template.
Send your first SMS today
From ₹0.15 per delivered SMS, credits valid for a year, and DLT help from a real person.