Are you asking for preparation?

In order to start your preparation you should be aware of the complete syllabus and exam pattern of the exam. 

You should be aware of your strength and weakness. so, that you can prepare accordingly. 

Your basic concepts of the subjects should be clear. 

Solve as many as mock test series for your practice and try to analyse your preparation level. Always learn from your mistakes and try not to repeat them. 

All the best!!