Interview experience of all candidates was totally different. My interview was totally knowledge based and they asked me about national and international affairs as well as history. It was a bombardment of questions for almost 30 Minutes. The panel asked me personal questions as well, we have gone through in ISSB. Btw many of others had very generalized interview. Medium was English. They asked from Accounting, Taxation, Economics, Economy of Pakistan and a little bit from Auditing. Btw I wasn't mentally prepared for a knowledge based interview. So I skipped many questions. Wish u all the best for your interview.