Certificate

Hi Romil,
This will be decided by the university, generally waivers are not given by Canadian universities but if your overall profile is good they may or at max can offer you a bridge course in English. I will really advise you to check with the universities directly.
Email them your scores and keep following up.

Migration certificate is issued by the university after finishing university examination. You are requested to approach the registrar of your university from where you did PG with the request to issue the migration certificate. You may have to apply for the migration certificate on a prescribed form which every university issues as per their rules and regulations.

You can go for ACCA. ACCA stands for the Association of Chartered Certified Accountants a leading international accountancy body. The ACCA qualification is recognised and is treated in other countries as being equivalent to their local qualification.
http://www.accaglobal.com/in/en/about-us.html
I hope this would suffice. All the best and god bless you.

You can add it to your CV.

IITs and Central Universities do not award any marks to NCC C certificate holder in JEE or other Entrance Examinations.

See it all depends on the college. If you are doing MBA from a mediocre college then it will be of no much use. On the other hand, if you are doing PGDM from a very good college then it will be worth any amount of money. It is the skill which matters not the degree or college in today's world. By the way, the difference between MBA and PGDM is that MBA can only be provided by a recognised university, but autonomous colleges are kept from doing so.
Hope this will help.

Hi,
You need to contact the college officials to know this. Here, at Shiksha, we can only provide guidance and counselling related to career.
Thanks and regards,