Chikky,

Just for info, different employers will look for different criteria at an interview.  Some interviews are also more formal than others, so you really have to play it by ear on the day and let the panel lead.  I have attended several interviews recently and all have been different.  Some were more competency-based, whilst others were more about me as a person.  No two employers are the same so it really is 50/50 on the day.