Upvote:8
The Australian form will ask if you have ever been removed, deported, or excluded from any country, Australia or otherwise. If so, they ask for the details.
We cannot predict your chances, but they will look very closely at any documents you submit this time.
This won't help chathuranga after the fact, but others who are reading this should note that just one ban or deportation by a major country can follow you for the rest of your life. Read the visa forms carefully and tell the truth.