Objective tests require a lot of practice. Particularly for the Reasoning and Numerical Ability tests,
practice pays. It not only enables a candidate to solve the problems correctly by indicating the methods to be used but also by achieving the required speed. Regular practice also generates a lot of confidence in the mind of the candidate to attempt the paper. The descriptive questions, on the other hand, need more of knowledge and analytical input. In-depth knowledge and correct expression are two important ingredients of essay writing. Style of writing also determines the marks to be obtained by the candidates. Similarly, précis writing is an art unto itself and needs to be mastered. It is not just summary but an attempt towards precision in own language, without losing sight of the content and its meaning. A good understanding, rich vocabulary and regular practice usually help a candidate to do well in Essay and Précis.
An aspiring candidate has to do well both in the written examination as well as the personal interview. Normally, the personal interview determines the selection of a candidate. A candidate, therefore, must be well versed in General Knowledge and current affairs and should be able to discuss and analyse topics of current importance and general interest. In addition to reading good newspapers, magazines and other books, the candidate should also have a good understanding, absorption ability and expression. Any knowledge is useless if the candidate is unable to express himself/herself while replying to any question. The candidate should also identify his/her strong and weak points and should be able to direct the course of the interview towards his/her area of strength.