Thanks Janab, As far as interview is concerned it does not matter what you know , but what matters is how you respond to them. just be confident while giving interview. They are asking some typical question that on how many organs Parliament of Pakistan is consisted on? Whats the difference between Senate and National Assembly? and many like these and they also ask questions according to your C.V. again and again be confident. I saw some candidates who have scored 73 but they were in quandry while giving interview and some despite having no how now of parliament performed very well. Wish you all best of luck :-)