Once your registration is approved, login to your MTNL DLT account.
- Login to MTNL(https://www.ucc-mtnl.in/login/)
- Navigate to SMS Headers under headers.
- Click on add button.
- Select header type as other for Transactional or service header.
- Enter your desired 6 char header or the senderid and click on search availability.
- Provide a brief description of why you need this senderid, and submit for approval.
- The request is sent for approval to MTNL and we have to wait for its approval to continue with next steps.