Certificate

Hi,
If you have lost your original certificate, then you need to contact the institute for the same as they have all your records and after necessary formalities, they will issue you a new certificate.

No, University or College commonly asks for such a certificate. So there must not be any need to. Make and send one such certificate. Besides, you can only make an affidavit or a verification certificate that your are in General caste. Actual purpose of a Caste Certificate is to claim Reservation.

You have very good chances of getting in SBS with an executive degree. Perform well in the GD/PI of the admission process.

Visit the website www.iibf.org.in

Hi, It depends from college to college. It may have advantage in some college and not in some. List of colleges with your score:
Birla Institute of Technology, Mesra, Ranchi
Dr. D. Y. Patil Vidyapeeth, Pune
Institute of Public Enterprise, Hyderabad
Amrut Mody School of Management, Ahmedabad University, Ahmedabad
PSG Institute of Management, Coimbatore
Jaipuria Institute of Management, Lucknow
School of Communication and Management Studies, Cochin
Kirloskar Institute of Advanced Management Studies, Harihar & Pune
Prestige Institute of Management, Gwalior.

I would suggest you not to go for such kind of private degree without appearing for the exam as it would not solve any purpose in the future. It is always better to go for a good college and pursue a regular degree if you plan to have a great future ahead.