Canada

Bachelor of Commerce in Canada lasts for four years and usually includes two years of foundational and elective courses followed by two years of intense immersive business courses.

Hello,
Which course are you looking for? Canada universities accept 16 years of education whereas Canada colleges accept 15 years of education. The minimum academic requirement for Canada colleges is 55 percent. Your IELTS score meets their requirement. You can try and apply for Canada student visa for the graduate certificate courses. But it would be highly competitive for you to get admission. You can try for New Zealand or Australia also.

You should first have 16 years of education to do any Masters course, if not then you cover that one year by doing a Diploma or any one year of education which can cover. Eligibilities for these universities are GMAT and IELTS. The colleges in Canada for MBA in finance are listed below:
New York Institute of Technology (NYIT), Vancouver, BC (Canada)
Thompson Rivers University, Kamloops, British Columbia
Brock University
Cape Breton University, Nova
ScotiaUniversity of Windsor, Ontario, Vancouver
Island University (SPP), Nanaimo, British Columbia

Yes, Diploma would be beneficial for you to get a job in Canada but you should complete your Bachelors for better opportunities in Canada.

Do you know what all courses are available for you to study in Canada?
Normally, mechanical engineers can do many specialised streams like, automotive, aeronautical, petroleum, oil and gas, CAD, designing and production like this on every field you have.
You have to first decide your area of interest.

IELTS and TOEFL are the most common examinations which people give to go and study abroad, to study in Canada you need to give these exams and score min of 6.5 in the exams.

Hello,
If you have got the university offer letter, it means you have fulfilled their entry requirements to take admission to that university. So, you definitely get the study visa for Canada.

Hi Anjali,
Check the following links to have a good idea about the top colleges there:
https://www.hotcoursesabroad.com/india/training-degrees/canada/postgraduate/human-resources-courses/loc/32/level/3/cgory/d5-3/sin/ct/programs.html

Hi Dhakshnana,
Yes, you can study MBA after B.Sc. Good luck.

Yes, you are eligible, but for that, you must give IELTS first, and then on the basis of the score band of IELTS, you will get degree. So, do best and achieve the best.