You can only fight the way you practice. Everything is practice.
Just practicing is not enough. What you need is quality practice.
Preparation for civil services is too vast and it encompasses wide realms of knowledge and needs an understanding of almost everything under the Sun. But, it is possible to crack the preliminary exam with even short preparation if you are planned, focused and willing to work.
Note 1: Paper-II of the Civil Services (Preliminary) Examination will be a qualifying paper with minimum qualifying marks fixed at 33%
Note 2: The questions will be of multiple choice, objective type.
Note 3: It is mandatory for the candidate to appear in both the Papers of Civil Services (Prelim) Examination for the purpose of evaluation. Therefore, a candidate will be disqualified in case he/she does not appear in both the papers of Civil Services (Prelim) Examination.
This examination is meant to serve as a screening test only; the marks obtained in the Preliminary Examination by the candidates who are declared qualified for admission to the Main Examination will not be counted for determining their final order of merit. The number of candidates to be admitted to the Main Examination will be about twelve to thirteen times the total approximate number of vacancies to be filled in the year in the various Services and Posts. Only those candidates who are declared by the Commission to have qualified in the Preliminary Examination in the year will be eligible for admission to the Main Examination of that year.