Hello

At first you need to decide the states for which you want to prepare and than check the syllabus. For prelims all you need to study is only bare acts , land mark cases and recent case laws and for GS books are available every where like publications Universal , Lucent , etc. but most important is bare acts knowledge. And after than for Mains examination do join a good nearby coaching because there you need a perfect guide with perfect study materials and writing technique. They also prepare you for the Final stage i.e., Interview.