Australia

Hi Harman,
It is best if you sit for your GMAT test.
Some Australian universities such as Macquarie University does not list having a GMAT score as one of their admission requirements - they need minimum two years of professional experience
But universities like University of New South Wales and University of Melbourne require a GMAT score. It depends on the university.
Check each university's requirement - and how much is their cut-off score.

Hi,
Complete your Bachelor's degree preferably with a first class. Higher the grades better the chances of admissions in top universities such as Universities of Melbourne and Sydney. Take your IELTS too. An overall score of 6.5 with no section less than 6 is required by most.

Both countries will have some pros and cons. If I were in your place, I'd prefer Canada because:
1) Its proximity to the US.
2) Availability of high paying jobs.
3) Global and recognized universities and curriculum.
4) Canadians are more friendly and welcoming to Indians.
I get positive vibes from Canada. I've not done enough research on Australia to comment.

Hi Kalindi,
It's not possible to mention a particular university because every single University has different admission requirements. I can only suggest you check average but popular universities like Griffith, James Cook, Mudorch, La Trobe, etc.

Hi Jigar,
The answer will depend on the nature of your gap period and if you have met the admission requirements. Your query is very general and you need to be more clear with your plans, academic percentage etc for better advice.

Hi,
All three are popular study abroad destinations. You can narrow down your final choice basis what you want to study, career plans, budget, climate preference, etc.