Diploma

After the completion of a 3 year recognised polytechnic diploma, you may opt for lateral entry admissions to a B Tech programme. You will have to clear state level lateral entry eligibility tests. Considering financial constraints, state level government engineering colleges offer comparatively low fee structure. Again financial assistance in the form of educational loans is available from leading banks in our country. Government and Institute level Scholarship schemes are also available for the deserving,

Canada certainly has more number of top colleges, variety of courses, and the cost of living is a bit more affordable than New Zealand. So education-wise Canada wins.
When it comes to jobs, that depends on your profile and not the country. You will have to make sure that have the qualities to be considered a highly skilled professional. Every job market looks for such candidate and even when the economy is down, deserving candidates usually manage to find a good job.

To take any Functional module, you need to have a minimum of 2-3 years of industrial experience in the relevant business function. Without experience in Sales & Marketing you may not get value from SAP SD module certification.

Please see below list
Asansol Polytechnic
Visvesvaraya National Institute of Technology (VNIT)
Indian School of Mines (ISM)
Wisdom School of Management, Bangalore
Mewar University

Yes you can join that. You need to 10th pass to do a diploma in India.