Australia

Australia is a safe country for all Asian origin nationals for job and higher education. Occassional racist incident can occur in any part of world. If you can culturally integrated with locals then you may not face any challenges while in Australia.

For visa, your marks are not considered. Your motive of visit and aim plays the important role.

It will cost around 25 lakh rupees.

Hello Vaishnavi,
GMAT is required to get an admit from top B-Schools in Australia. However, some Universities in Australia do accept without GMAT score. But, the VISA officer might ask to produce GMAT score.
All the best.

Yes, you can. You just need to score good marks in GRE and TOEFL exam.

Which course do you want to pursue? Can I know about the field in which you want to make your career? Are you a graduate?

Dear Siddarth,
If you intend to pursue your higher education in the same field, you need to check out with the university chosen by you as to which level they can admit you after they check the subjects taken by you in your Diploma. You also need to score good marks in IELTS exam.

Dear Shefali,
You can get through if they like you. Your grades, work experience, career goals will all matter. Extracurricular are most important when you apply to B-Schools in US.