You should try to adopt such a strategy by which you are able to cover all the important topics. You should adhere to intensive and focused approach which is built on scrutiny. You should choose the areas of your interest and study them thoroughly as beginning with the topics of your interest will encourage you for further study. You should also go through previous years question papers. It?s important for you to be familiar with the fundamentals of the structure, process, behaviour and environment of the administrative system. In addition to this you should also be conversant with the current developments. Lat but one of the important aspect, equal attention should be paid to writing practice for time management