Engineering in Canada

Below mentioned are the best universities in Canada:
1. Ecole Polytechnique.
2. University of Calgary.
3. McGill University.

Hi Tejinder,
Basis your grades, you are eligible to pursue your studies in Canada. Since, every university has different requirements please check individual university websites. The application process is online, make sure you submit the application before the deadlines.
Along with it you must submit a personal statement, letters of reference (from your teachers), high school transcripts and report your IELTS scores to the universities, you wish to apply to. For more details check the admission requirements page of the universities.
I hope this helps.

Princeton, MIT, CalTech, Virginia Tech, Georgia Tech, Brown , Cornell,Carnegie Mellon, University of Toronto, British Columbia, University of Waterloo are some of the famous colleges for undergraduate studies in US and Canada. Check the college sites for SAT requirements, TOEFL or IELTS scores they require and other academic criteria.

Not directly. But you can look for bridge course and do math for a year in Canada then try for engineering. There are certain diploma courses provided by colleges, these you can try

Hi there! In Canada, Masters is usually research-focussed and is for students interested in a PhD. Further Masters are also expensive as opposed to the one-year PG Diplomas which are industry-focussed. Contact www.scholarclips.co.in/contact-us.htm for more details.

Hi
With 58% it would be difficult to go for a B.Tech degree in Canada or anywhere as they require 75% above. You may try to go for Diploma first and then once you complete it, you may apply for PR and then pursue your degree. The Diploma is well respected in Canada and you can work too. For more info, take a look here.
http://www.senecacollege.ca/fulltime/CVT.html

Yes , check out http://www.edwiseinternational.com/study-in-canada/application-process-canada-universities.asp
give it a try