The last few days before any exam is a crucial time, not because the exam is knocking at the door but because it is the time when you need to control your nerves and remain composed.
Revise more than you learn - It is the time to revise what you have already learnt and make your knowledge in those areas stronger instead of trying to cover new areas.
Solve previous years IAS question papers - When you solve question papers, you get better acquainted with the question pattern. This helps you to understand which parts you need to focus on more.
Take mock tests - Whenever you take a full-length test from an IAS test series, consider it to be your actual IAS Prelim exam and not just a mock test. This practice gives you confidence while appearing for your final paper.
Remember the UPSC exam pattern and marking scheme - Keep in mind that there is negative marking for each wrong answer in the IAS exam. The importance of taking up online UPSC mock exam series cannot be stressed enough.
Keep reading newspaper - When candidates stop reading newspaper, they make a big mistake. You should keep reading newspapers and know the current affairs in brief.
Do not take stress - You should not burn yourself with stress; This can harm your performance in the exam even if you have covered the entire syllabus for UPSC thoroughly.
Maintain a healthy lifestyle - You must get proper sleep and give enough rest to your brain. You can try meditation it helps to increase your concentration and memorization capacity.