B.Com

You can't do CA in Australia, because it is an Indian concept. You can do ACCA, CFA CWA in Australia as these are also professional course like CA. All the best.

You can go with distance learning MBA programs. Here are many universities for MBA programme. So, you may enroll there. Distance Learning Universities are
1. Amity University distance learning
2. Annamalai University
3. Suresh Gyan Vihar University
4. Mewar University

No, don't worry about it. Once you grasp the accountancy rules, you may find you're better ATIT than your commerce counterparts since you would try to logically understand the problems.

BCom Honors in which subject? If accounts, then below is the eligibility criteria, I think you will get the admission because you are nearby criteria try for admission
Aggregate: 80% [best 4] + 80% in
Accountancy/ Accounts / Business Studies/ Commerce/ Costing &Taxation/ Economics/ Statistics / Commercial Law & Auditing / Mathematics or other allied subjects

Sorry, you can't pursue both the courses from the same university. If you want you can change the course initially while filling the form.

It will be both Hindi and English. You need to specify the name of the college for better clarity.

Hi Shravan,
Yes, you can give improvement exam and improve your scores. Good luck.