Am I eligible to pursue MS in cyber security from Australia?

Hello Ajit, You may surely apply for this course with an application made before the deadline to the university. You need to have an IELTS score & the explanation for you have been working or involved in activities during the gap year. Best regards.

Yes, you are eligible.

What do you mean by gap? Also, on the face of it, you seem to be eligible for the MS. However, take a 2-years course or else, you will not be eligible for PR.

Yes, of course you are.