Dear Abin,
Entry into most masters courses in Australia typically need a bachelor's degree from a recognized university and proficiency in English language. IELTS score is also required by many universities for admission.
Most universities also have additional entry requirements, such as prior knowledge in certain subjects, work experience or the successful completion of an audition, portfolio, interview or test.
There are various global leading companies present in Australia. On the basis of your profile you'll be selected under their organization.

I hope this information helps you

All the best