I just don't want to disclose somethings here because we were also "taken into account" in our unawareness and that's the beauty of the process. General pattern of the interview:

1. Introduce yourself.
2. A question on any striking fact in your (personal / academic / professional) data / info. you already sumbitted to them.
3. Cross-questioning. (only if your answers are interesting, appealing and engaging the panel)
4. A question on your family - (must)
5. More than one questions on your last degree / field of education and / or current affairs. (Only if the above 3 met with satisfactory answers to the expectations of the panel; hence, please mind that if they close the interview prior to asking questions on your academics / family or current affairs thereby limiting the interview to the first 2 or merely 3 questions; I am afraid you messed up somewhere).
6. If you clear the five questions the panel may probe about your current job - your approach and solutions to the given problem in the field of your native expertise.

Real Help:

1. Remember, first two (02) questions are asked to assess your conversation / English communication skills, composure, confidence and word-delivery cum efficacy.

That is, if you are unable to convince them on your communication skills / composure they may conclude by saying, "Thank you (your name)".

2. Remember, they'll give you a deliberate drill on current affairs / last degree and THEY KNOW that on some certain questions you will "stutter"