10 April 2016
No, CARO 2016 was notified recently on 29th march 2016 by MCA and therefore it is not applicable for your may 2016 exams.
Note: The relevant notified Sections of the Companies Act, 2013 and legislative amendments including relevant Notifications / Circulars / Rules / Guidelines issued by Regulating Authority up to 31st October, 2015 will be applicable for May, 2016 Examination.