Canada

In USA, you should take pre-medical entrance exam I.e MCAT (Medical Common Admission Test). Likewise, other countries also should take pre-medical entrance exam.

It is not possible to get admission there in 6 bands and with 65% marks. You will have to work hard to score good band to get admission.

Hi,
McGill University, UBC, University of Toronto, York University, University of Western, Queen's University, Ryerson University are some of Canada's best.

Master degree is definitely good as this has a greater value and recognition.

You need to score 6 band and above to get admission in a good college.

Yes, but if you are looking for long term career growth you must do an MBA or Masters. PGDM are popular in Canada but when you look from an employer's point of view the higher the qualification the better. You can do your PGDM, gain some work experience and do an MBA perhaps.

Hi Jahnavi,
There is no MBBS in USA and Canada. So, this leaves with you in Australia, UK and New Zealand. If you still want to pursue your medical studies in US and Canada you must initially enroll into a four year bachelor degree program there , take the MCAT and then apply to a medical school. For the other countries you must take the following tests in addition to completing your 10+2 with very good scores
UK - UKCAT
Australia - UMAT or MCAT
New Zealand - UMAT
You must also take the IELTS or TOEFL. Check the respective websites for more details.