Revalidation of ipcc

Hi Sir,   
 
I am from Kerala and I belong to Ernakulam Region.  I have registered with PE-II course (without articleship) and later I have converted to Integrated Professional Competency Course with effect from 17/Jan/2011.

I would like to appear for the IPCC (formerly "Intermediate" course) Nov-2015 exams and request you to kindly clarify on the following 
 
1.  Is my above registration still valid.  If not, what should I do to make it valid? 
2.  As I have a initially registered for PE-II course (without articleship) whether I would be allowed to write IPCC exams without doing articleship?.    
3.  If article ship is a must for writing IPCC exams, then what is the minimum duration of the article ship required to get the eligibility to write IPCC exams? 
 
Please clarify my above queries. 

Thanks