I applied through college or university. I interviewed at RRB Energy (Ambala) in Mar 2013
Interview
On campus interview, Interview panel had DMD, Company secretary & VP R&D...First is group discussion followed by final interview & same day offer letter was given. Joining was in June
Interview questions [1]
Question 1
Technical(Simple, if basics are clear) + Family Background + Educational Background
I applied through college or university. The process took 1 day. I interviewed at RRB Energy (New Delhi) in Nov 2014
Interview
Written followed by GD and PI. Written consists of technical questions only. You Have to be good in your engineering subjects to crack the exam. however no tech. questions were asked in the interview.