As per the recent guidelines by Telecom Regulatory Authority of India (TRAI) , it is mandatory for a business to register on the Distributed Ledger Technology (DLT) platform, a block-chain based registration system before sending bulk SMS to its customers. This is aimed at creating more transparency and reducing the incidence of spam and fraud done through SMS. A business entity has to register itself on the DLT portal, register Sender IDs and submit message templates.