Delay in exams

Hey guys,

I have completed my CPT and IPCC both groups, I'm due to for the Final in May 2014, due to some unforeseen circumstances it seems that I might have to delay my Final Examination.

I just wanted to ask you guys if I can delay my final examinations and if yes by how many months? Like can I give the exam after an year or if need be even after 2 years? Is there a limit on the maximum delay allowed? I just don't want to clear all my exams again.

Thanks in advance.