There are 3 papers that you need to concentrate on: Mathematics, Statistics and Logical Ability. Logical ability will test your analytical and reasoning capabilities.

Under Mathematics section, you have to be thorough with the topics like Modern Algebra, Algebra, Probability, Trigonometry, Co-ordinate Geometry, Calculus, Vectors, Dynamics and Statics. Under Statistics, you need to prepare topics like Theory of Probability, Mean, Median, Mode, Dispersion and Standard Deviation.