Certificate

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,

Yes, you need to submit all the documents along with domicile during the admissions.