4 rounds of interview - Written(Aptitude), GD, Technical, HR. The technical round comprised of basic questions from the relevant fields and from the training/internships and projects. Although it seemed that the interviewer was only keen for persons who had similar interests as his own field. If you had interests in some other field the interviewer was not so interested.

2 rounds of interview 1st interview was technical. They wanted people who knows C. Asked me the difference between struct and class. Then some simple array programming questions. Also a question based on date and time. HR interview mainly looked for our understanding qbout Alstom. They wanted us to speak about what i know about alstom. Also asked if I'm flexible for relocation