Cost accountancy training programme doubts... please clarify

Hi, 

I'm planning to do Cost Accountancy. But I've a few doubts regarding the training programme. 

1. When should one commence his training programme?

At any time, but before appearing for both the groups or for the remaining group of the Final Course.

2. Is there any requirement like minimum training period completion for appearing in Inter or Final exams? Or is it only like, it is required to be completed before applying for membership?

Out of the total period of 3-years of practical training, a student must be registered for a period of 1 year out of which at least 6 months must be completed before 31st March/30th September respectively to become eligible to make an application for examination to be held in June/December, for appearing in both the groups or for the remaining group in the Final Course.
.
--> Effective for all students (registered under “Syllabus2008” and “Syllabus2012”) who will be appearing in final examination from December 2013 onwards.

Please throw some light on the above...
Thanks in advance