The interview mostly revolves around the instrumentation and it's fundamental knowledge . Alos along with what is present in your resume. Question relate to thermodynamics, working of sensors, . Previous projects done by you. Team player skills. Overall the interview are not hard but it's better for someone who has some instrumentation study background.

1st round was technical+basic aptitude+GK. 2nd round was GD. Then finally interview. Questions were asked mainly from resume in interview. Technical questions were very basic. GD too was general topics.