Canada

Hi Vidhan,
UBC, University of Toronto, McGill University, University of Alberta, University of Waterloo, Ryerson University are some of the top notches.

As you would have a grip over mechanical topics, doing ME as a post bachelors programme leading to the professional degree which gives you a terminal Master's degree. If you are interested in updating technical skills, this would be a great option for sure.
Colleges in Coimbatore for ME:
Bannari Amman Institute of Technology
Velalar College Of Engineering And Technology

Yes, but if you clear all the backlogs.

A first class is required, at least 60% by some of them while the top ones require 75%.

Hi,
The best course is specific to an individual. You have to know what is best for you, what your career plans are and decide accordingly. You can opt for mechanical engineering, manufacturing engineering, automobile engineering, design, robotics, etc.

Hi,
Please check here for step by step process:
http://www.mta.ca/apply/

Please confirm your full educational profile for advice.

Hi,
Check UBC, University of Toronto, York University, McGill University, Simon Fraser, etc.

Hi Lakshmii,
Not every university in Canada requires a GRE score. You have to check the university websites for entry requirements accordingly.