Hey rishav,
Appreciating the question asked by you. For clearing the entrance exam like NEET and AIIMS go through NCERT 2 to 3 times. Revise it as many times as possible because they ask questions from any corner of the book. For 11th or 12th boards go for your state textbooks, they are more than enough. They will give you more than enough marks
Thankyou I hope you got your answer!
Chandrashekhar Rai
CR at career360