Hello Sonu

Self study is the best approach to score higher marks in any exam. You have History, Geography, Political science, English. All are theory subjects. You have to learn the facts and figures. Just read the new topic 2 times and after this make notes of important parts. This will be like a summary if the chapter which will help you to revise in the last day of exams.

For any query, feel free to ask.

Thank you