This is easy to do and the process is simple. You just need to make a request to SBI first. To unlock your domain you will go to a specific SBI page and enter your order number. They will then provide you with a domain authority code.
Next go to your new domain registrar and initiate a transfer request. Your new registrar will ask you to enter the domain authority code that SBI provided.
You will not be required to go through this domain unlocking and transferring process until your content and pages have been transferred to the temporary WordPress site, and you have checked this. When everything is ready we will advise you to start the domain unlocking and transfer process.