University of Waterloo

B.Com is not available in UK. You should try for Canada, New Zealand, Ireland or Australia.

Dear Abhishek,
All the three colleges mentioned are well known. From a strategic point of view, I would prefer Toronto because it is the financial capital of Canada, which means greater access and opportunities. The university is extremely competitive, so apply to the other two as well. Simon Fraser is also a popular university for undergraduates.

All Canadian universities ask for minimum 60% percentage, counted as per Indian standards, for you to qualify for applying in Canada.

Hi Abhishek,
SAT is not required for UBC. If you decide to take for better admission prospects aim for a score above 1300. Please read this
http://you.ubc.ca/admissions/international-highschools/

The kind of job you will get depends totally on you and your capabilities. If you are better at finance then you will get a job paying job on finishing B.Com in accounts & finance, similarly if you have subject knowledge and command over computer Science then that course will also lead to a well paying job.
Don't get stuck in a wrong course because of future job prospects.

The approx. fee for engineering is around 40000$ annually.
you may check the rest on the following link
https://uwaterloo.ca/find-out-more/financing/fees