I am sorry I was a bit busy these past few days so just saw your posts. Interview went well in my opinion. There were 4 people in my panel. 3 were technical and one was from HR.
Interview is in a relaxed manner. They got straight down to business with me and asked 4-5 technical questions after asking me what were my subjects in Electrical Engineering. Some standard HR questions like would you be ready to shift if we send you to Lahore or Karachi? Because I live in Rawalpindi and I said straight away that I've no problem. They also asked me how I'd be useful to the organization so you basically should know their business and relate your qualifications to them. There is no right or wrong answer to such questions in my opinion.
Interviews are continuing till 27th November. Ours was the first day and people from Electrical,Mechanical and civil engg disciplines were there. There were separate panels for each discipline of course.