Every promotional SMS must include clear

[taaaaahktnntriimh@]

For most major networks (Grameenphone, Robi, Teletalk), Alphanumeric Sender ID registration is required for promotional SMS. Unregistered Sender IDs will be blocked.
This ensures transparency for the recipient, showing them who the message is from (e.g., "YourBrandName").
You'll need to submit company details, a valid business case, and sample content for approval. Your bulk SMS provider can usually facilitate this process.
Content Guidelines & Restrictions:

Language: Promotional SMS content should ideally be in Bangla (Bengali) for gambling-data-china maximum resonance, as per BTRC guidelines. English is also acceptable for relevant audiences.
Forbidden Content: Avoid political, religious, unsolicited promotion, gambling, or sensitive keywords (e.g., "police") as per BTRC regulations and operator filtering.
Opt-Out Mechanism: instructions on how to opt-out (e.g., "Reply STOP to unsubscribe," "Visit [link] to opt-out," or a helpline number). This aligns with DPDPA Data Principal Rights.
Vetting: All SMS content (except OTP/Transactional) needs vetting and approval from BTRC or your SMS service provider.
Timeliness: Only send marketing SMS during an end user's daytime hours (e.g., 9 AM to 9 PM local time in Bangladesh) unless it's urgent transactional communication.

Best Practices for Effective Location-Based SMS Campaigns
Once your list is compliant and ready, focus on campaign execution:

Define Hyper-Local Segments:
Mandatory Scrubbing: Before sending any marketing SMS, you must scrub your list against Bangladesh's NCPR/DND list. This is a crucial BTRC regulation. Individuals registered on this list have opted out of unsolicited commercial communications.
How to Scrub: Bulk SMS service providers in Bangladesh typically offer this service as part of their platform. If managing in-house, you would need access to the official DND list (usually provided by BTRC or through licensed aggregators).
Sender ID Registration (BTRC Requirement):