Dear Poojitha, you should have completed 17 years of age and your +2 to apply for your graduation in Australia. The minimum percentage required in your +2 is 60. This also depends on the University that you want to apply for. To add on you would have to show language proficiency. English is the official language of Australia and medium of instruction. Hence, you would have to show English proficiency and take mandatory tests for admission to any course. Both IELTS and TOEFL are accepted across different institutions and universities in Australia.