There will be 60 questions in total, out of which 30 will be aptitude and 30 will be technical. Aptitude section mostly consists of questions from Indiabix.
Most of the questions in the interview will be from corrosion and Non-destructive testing. Interviewer mostly checks your basic knowledge in other subjects of metallurgy and on internships.
This round starts with your introduction and the interviewer tries to get knowledge of your co-curricular activities in the college.
Have a basic idea of 6-7 subjects of your branch.