Canada

I guess above 6 band are required to study in Canada.

Hi,
No top university will admit you without a GMAT or GRE score. You can reattempt the GRE if the score is not high enough. Typically a score above 310 in GRE and above 650 in GMAT is average. Also remember if you have an excellent profile, brilliant recommendation letters, career growth etc. You may still be accepted with slightly lower test scores, universities check applications holistically.

Hi,
Yes, why not. Human resources is a popular specialisation under management studies. You must, however, be clear with your interests and career plans and demonstrate them on your SOP clearly. Admissions also depend on your SOP, a lot of them.

Hi,
You will find PG Diploma programs in colleges, very few universities offer PG Diploma courses in limited manner. Universities mainly offer UG and MS programs.

Hi,
They have pre-professional studies in medicine for which you must have completed your university degree, you can apply for your Bachelors there itself, please contact them for details:
https://www.brandonu.ca/future-students/programs/pre-professional-programs/
Here are some health studies they offer:
https://www.brandonu.ca/future-students/programs/degrees/

Yes, here are different application requirements for all colleges. Visit the websites of the colleges you plan to apply to and checkout the application requirements.

It depends on how you define too expensive? Canada is of course very expensive than India. But compared to the US it is cheaper. For a BBA course be ready to spend anywhere between INR. 16L to INR. 24L per year.

Kindly mention the course name for better understanding. Also, if you have any specific university name in mind, do list that.

Congratulations first of all for getting such good score in IELTS. With such good score, you can aim for top universities in Canada for your desired programme in the following universities, university of Toronto, Waterloo University, Mcgill University, University of British Coloumbia, Mcmaster University and many more. Since you have cleared your Bachelors with good GPA and cleared all backlogs you can aim high. Good luck and I hope this helps you out.