I used to divert my mind from the thoughts about the interview by switching on the sound on my mobile and used to hear them. If there is no phone I used to read newspapers or some magazines so that the thoughts of the interview will never occupy my mind. I did this many times and I got good results. As you become more and more experienced facing an interview will not be a problem for you.
'Idhuvum Kadandhu Pogum "
Even this challenging situation would ease
Generally, those students who can present in front of an audience and are habitual of making presentations and giving lectures will have a better confidence while facing the interview board. But other students can also participate in group discussions or debate or something of that nature which inculcate confidence in them. By practicing like that they will definitely gain more self confidence and will be able to face interview board easily.
Knowledge is power.