I recently transferred from a stats board (under ministry A) to ministry B. I guess the only way to transfer is apply jobs through govt career portal? I applied my new job from there. I was give two option to either do movement policy or resign (like normal resignation). Of course, the two option have its pro and cons (one of it is $$$, benefits wise depend on your employer) depending which is better for you. I was told they will recognize my service in public sector but i will go to the new workplace as an new entrants.

I was told if you transfer ministry to ministry.. you can leave your current workplace asap once the HR have come up with an agreement. Meaning you don't even need to serve standard one month notice.

hope this helps.