First things first. AIIMS MBBS examination has been scrapped. And admissions to MBBS in AIIMS and JIPMER will be done on the basis of NEET score. Under All India Quota, All the 15% of All India Quota Seats except for Jammu and Kashmir, 100% Seats at Deemed and Central Universities, IP Quota seats in ESIC Colleges, Seats at AFMC, AIIMS and JIPMER are filled by DGHS. So, you need to prepare for Physics at NEET level. If you are appearing for NEET for this year, then this weightage can help you. The important topics are Mechanics, ElectroDynamics, Modern Physics, Heat and Thermodynamics, Optics, Simple Harmonic Motion, Waves. Formulae form an integral part of your preparation. The important topics are Optics, Ray Optics, Optical Instruments, Wave Optics, Electronic Devices, Electrostatics, Electric Charges and Fields, Thermodynamics, Electrostatic Potential, Current Electricity, Electromagnetic induction, Alternating current, Dual Nature of Radiation and Matter. Highest weightage goes to Optics at 10%. Thermodynamics, Electrostatics, Electronic devices share 9%. Current Electricity and Electromagnetic induction, Alternating current take 8%. Dual Nature of Radiation gets 6% while Motion systems of rigid particles and body and Magnetic effects of Currents, Electromgentic waves and Magentism get 5%. Work, Energy and Power take 4%, Atoms and nuclei, Oscillation and Waves, Properties of Bulk Matter, Laws of Motion and Kinematics share 3% and the rest of the topics carry 2% weightage. And the best books are:

NCERT Physics Class XI & Class XII
Concepts of Physics by H. C. Verma
Objective Physics By DC Pandey
Fundamentals of Physics by Halliday, Resnick and Walker
Fundamental Physics by Pradeep
Problems in General Physics by IE Irodov