Dear Parul,
I handle training on Vendor Management. Your query can be addressed, however you need to give following information:
a) What is your product or service?
b) What is the geographical spread of your vendors?
c) How have you categorised your vendors?
d) Are you from procurement department or HR department?
e) The person who deals with vendors, does that person requires technical knowledge?
Thanks,
Dinesh V Divekar
Beware of false knowledge; it is more dangerous than ignoran