South Asia

India's SMS compliance system is unlike every other market in this series. In Nigeria, Kenya, and Tanzania, the core requirement is registering a sender name with each operator. In Australia and the US, you register with a centralized authority or registry. India requires you to register three distinct things, your business entity, your sender header, and the exact text of every message you intend to send, before a single message can reach a recipient. Miss any one layer, or let a single character in your message body differ from the registered template, and the carrier's system drops the message silently. Your platform shows it as sent. It never arrives.

Bangladesh gives its two SMS traffic categories names you will not find in any other market covered in this series. What most markets call an alphanumeric sender ID, Bangladesh calls masking SMS. What most markets call a numeric sender, Bangladesh calls non-masking SMS. The distinction is not just terminological. It determines whether your messages can reach NDNC-registered numbers, whether you can send outside business hours, which BTRC-licensed aggregator route is appropriate, and whether your brand name appears in the sender field at all. Getting the category wrong means either your messages reach the wrong numbers through the wrong route, or they fail to reach anyone reliably.