Aoa friends, I am a Mechanical Engineer of UET and currently studying M.S Mechanical Engg. in 3rd semester. I am teaching physics to inter students and my research is based on Fluid Dynamics. Recently , I viewed CSS past paper and I was surprised that I could attempt 60 marks straight in the exam (Paper-1). Paper-2 wasn't very tough as well, I was able to understand the questions and knew where these questions came from. Sadly, I can't choose both mathematics and physics. However I am planning on choosing Physics as well. Other subjects I have chosen are Political Science, Int. Law, USA history. Please guide me with your views , it will be a great help.