What Is DLT Registration? A Complete Guide

In India, DLT Registration (Distributed Ledger Technology) has become mandatory for any business that wants to send bulk SMS — whether promotional, transactional, or OTP messages. Introduced by the Telecom Regulatory Authority of India (TRAI), DLT is a blockchain-based system designed to boost transparency and curb spam by ensuring that only verified businesses can send commercial messages. Through DLT, companies must register their business entity, sender IDs (headers), and message templates before sending SMS campaigns, helping protect users from unsolicited or fraudulent messages.

Completing your DLT registration involves choosing an approved telecom operator’s DLT platform, submitting business details and supporting documents like PAN and GST, and paying the required fees. Once approved, you can register your sender IDs and message templates, ensuring your SMS campaigns reach customers without being blocked by carriers. Staying compliant not only prevents delivery failures but also improves your brand’s credibility and SMS performance in the long run.

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