Keep in mind there are lots of competitors for the job, and you will only have this opportunity to impress the hiring authority. So be well prepared for your interview.
Thoroughly research the company you are interviewing for.
Make sure all your paperwork & clothes you have planned to wear for the interview.
Research the type of interview that will be conducted.
Be Prepared and practice for the interview.
Review the questions that might be asked in the interview. Look at past papers or questions asked.
Ask one of your friend or family member to do a mock interview with you.
Get a good night's sleep. Dont overdress or overdo makeup.
Be prepared to take some analytical and/or employment related tests.
Be prepared to meet with managers, supervisors, etc. 4 to 8 different people, including the potential boss may interview you. You may be interviewed individually or as part of a group. There are no general rules as to which people you will interview with or their interviewing style.