Ravi,
Refer to your msg'...
a) Have written the exam at SAP or Authorized Center or Pearson VUE?
It is Pearsonvue Authoirzed Center
b) Which country you have written the examination?
In Dubai
c) Have you contacted the local SAP Education in that country?
FYI, after i written the exam recently i approached SAP Germany with my registration ID and they said that certificate sent to my address, till now which I've not yet received.
Hope this is clear.
Regards
Kiran