RAILWAY RECRUITMENT BOARDS release Answer Key for NTPC (Graduate) Exam (CEN 03/2015) : Question Papers, Answer Keys and Candidates’ Response for the exam will be available on the websites of RRBs from 00:00 Hrs. of 12/08/2016 to 23:59 Hrs. of 19/08/2016. Objections to Question(s) and Key(s) can be raised during above period only. Objections raised by the candidates, if any, will be considered and evaluated before processing of the result. Thereafter, RRBs will hold additional CBT (second stage examination) in terms of paras 8.12 and 14.03 of CEN 03/2015.