I also want to share some tips with you people regarding interviews:

1) Try to reach the venue within scheduled time, and get yourself familiar with surroundings.

2) Try to interact with other aspirants, this will boost your confidence.

3) Get dressed properly (most preferably two piece with tie) and wear neat and clean dress. Don't wear casual colored shirts like red, yellow etc, prefer blue color.

4) Be shaved or have your beard trimmed well.

5) Interview normally starts with introduction, and in the start don't tell them that they have your CV and they may know your name. Just start with your name and family ending with your distinctions, achievements and future goals. Try to avoid terms you are unaware of, because interviewer will take you to an uncharted territory of that particular term.

Regards