To get admission in AIIMS Delhi, better to get more than 160 (general category) as this would be the safest score to secure admission there and you will have to apply for the same online but as of now the application dates are not released but tentatively it should be released in the month of February 2018. So plan and prepare accordingly so that you can achieve your goal and you can also follow below provided preparation tips and study material as these will be helping you

1. Know your Syllabus Well.
2. Work on a Time Table.
3. Make your Basic Concepts Strong.
4. Improve your Weak Points.
5. Write Notes and Prepare Flash Cards.
6. Attempt Mock Test and Solve Sample Papers.
7. Revision is really must.
8. Make Sure to Take Breaks.
9. Check out Proper Books for Preparation.

Biology: NCERT Biology of Class XI and XII Trueman's Biology Vol 1 and 2 Objective Biology by Dinesh Pradeep Publication's Biology GRB Bathla's Publication's for Biology.

Physics: Concepts of Physics by H. C. Verma NCERT- Physics Part 1 and Part 2 D C Pandey Objective Physics Fundamentals of Physics by Halliday, Resnick and Walker Problems in General Physics by I. E. Irodov

Chemistry: NCERT Chemistry Physical Chemistry by O.P. Tandon Organic Chemistry by Morrison and Boyd for Organic Chemistry Modern’s ABC of Chemistry for class 11th and 12th Concise Inorganic Chemistry by J. D. Lee for Inorganic Chemistry Dinesh Chemistry.

Good Luck!!!