Hello,

NEET exam has 200 questions, and 50% of the questions will be based on NCERT, hence you  must be thorough with the NCERT books of class 11th and 12th of physics, chemistry and biology,

Other than this, for Physics you can refer Concepts of Physics by H. C. Verma, Objective Physics By DC Pandey, Fundamentals of Physics by Halliday, Resnick and Walker

for Chemistry, you can refer Physical Chemistry by OP Tandon, ABC of Chemistry for Classes 11 and 12 by Modern, Concise Inorganic Chemistry by JD Lee,

for Biology, Biology Vol 1 and Vol 2 by Trueman, Objective Biology by Dinesh, Objective Botany by Ansari,

other than this go through previous  year papers which you can access at our page at https://medicine.careers360.com/download/neet-sample-papers-previous-years?sort=recommended, this will make you acquaint with paper pattern, marking scheme, important topics, weightage etc, through consistent practice you can analyze your level of preparation in terms of strength and weakness, and thereby improve your speed, time management skills, and calculation.