Most of the questions are in line with those provided in the Glassdoor website.Since I chose Control theory, the interviewer asked questions related to proportional controllers, their disadvantages, bode plots, gain margin, phase margin, second order characteristic equation and importance of time constant,settling time, rise time etc. Also modern control theory which included questions on state space model and it's significance.I was specifically asked to write state space matrix equations for non-linear system of equations and then about Lyapunov stability. Programming questions were mostly on pointers and storage classes. I did not do that well in programming which I think is the reason for me being eliminated in the technical interview. Had I done well the interviewer would have asked questions from MATLAB and Mathematics also.