1. Don't over-expect. Don't take an extra pressure on your head for AIIMS preparation. The other tensions are already enough.
2. Just keep cool and prepare but keep in mind that for any other PMT and so also AIIMS you should go through the text thoroughly.
3. Don't simply cram facts. Understanding is more important and definitely pays when required.
4. Don't hesitate to clear your doubts. Don't have that feeling that you don't know anything. Everyone has his doubts. After all, a rose also has thorns. You are the rose and have to remove your thorns one by one.
5. Start from the important topics so that they are not left out.
6. Try to do the maximum. But remember that you cannot remember everything. It's human to forget. Caution: Don't try to make this tip an excuse. You must remember the maximum as I said, if not everything. After all the competition demands you to be perfect.
6. Share problems with parents. Be it be related to your emotions or to your preparation. This will let you come back on track and concentrate on your studies again.
7. Concentrate on your G.K. You need to keep a track of the events of the past year, besides the basic facts. (HINT: Nobel prizes and other awards are very important)
8. Have a clear concept. This will help you maximum during assertion-reason type questions solving.
9. Read quality magazines like Exams Today and not just any others of the plethora available on the bookstalls. These magazines present a wider application of the various concepts related to your studies. Such concepts are often asked in the AIIMS paper as an assertion-reason type or in the conventional MCQ type questions. I found ETG (EduSys) test series and correspondence course material useful for the AIIMS PMT preparation.
10. Read HYFs available in the above-mentioned magazines and correspondence course to revise a day before the examination as there is no time to go through the entire books again.
11. Positivity is imperative. A grumbling, constantly irritated nature will not take you anywhere. Yes, you have a lot of stress on your head but a positive attitude will help you keep your cool in tough times.
12. Health is everything. Exams are tough and that's why you need to pay even more attention to your health during this time. Get enough sleep and eat healthily. A bad headache or even a simple stomach on the D-day can mess up all your hard work of two years.