03 September 2013
No announcement as yet but most probably it will be applicable for Nov 2014 exams.
It is clarified by ICAI that the Companies Act, 2013 will NOT be applicable for November 2013 examination and decision regarding the applicability of the Companies Act, 2013 for CA Examination would be taken and informed to the students well in time before the May, 2014 Examination.
03 September 2013
Agree with both the learned experts. There are no reasons to defer the applicability of Act 2013 for November 2014 attempt. So advise you to prepare accordingly.