Australia

Dear Sunil,
You have not specified the PG course you want to pursue. However, I will give you the basic process for the same. First, select the course you want to pursue and then find out which universities offer the same and what are the academic and IELTS requirements for the same. You will need to give your IELTS exam and get a score of overall 6.5 with no band less than 6 and have a minimum of 65% in your final year (UG). Some Universities may have a higher cut-off. Once you have got this, you can apply online and the documents required will be on the university website where the application process will be explained in detailed. The other best thing to do is check out the best overseas education consultants available in your city and use their services as they do not charge the student for the same. Please ensure you select a 2-year duration course and not 1-year course as a 1-year course will not make you eligible for post study visa and later PR.
All the best.

Dear Roopesh,
You do not need to take GMAT exam for admission in an Australian University for MBA, you need to take your IELTS and get an overall score of 6.5 with no band less than 6. You will need a pass percentage of above 65% in your UG and the exact cut off will depend on the university in which you are applying. Some may also require you to have a work experience of at least 3 years after your studies. However, the majority of the universities offer an MBA for overseas students (fresher) so the work experience should not be a problem. Please ensure that you enrol in a 2-year course and not for a 1-year course as you will not be eligible for a post study work visa and later for PR in the case of the 1-year course. Keep this in mind and do not get misled.
All the best.