It depends on your preparation, i M giving you some tips regarding preparation

1. For every practical subjects, do solve problems. Practicing is the ultimate key here. If you how the things work around the concepts, you are the best. But for that you need to solve more and more problems.
2. Regarding the theory subjects like Economics and Law, be thorough with the concepts given in the syllabus. Law is write easy if you know the various concepts and common sense. Refer book of Author Gogna for Law.
3. Specific point regarding Economics: At every attempt, statistics are asked regarding economic concepts. For that what I did is I prepared a list of all important statistics for quick revisions in future.
4. Last most important thing, trust your competency. Believe in yourself. Study like its the ultimate dream of your life to become a chartered accountant