In order to use .bd domains, you need to download 2 documents from BTCL
website, they're the only official registrar who can actually register
.bd domain.
Files to be downloaded-
In .bd Registration form- fill up with necessary information and enter the Name Server Details:
NS1.GEOSPACEHOSTING.COM
NS2.GEOSPACEHOSTING.COM
NS3.GEOSPACEHOSTING.COM
NS4.GEOSPACEHOSTING.COM
NS5.GEOSPACEHOSTING.COM