Many Aspirant neglect the power of NCERT and thus most of them Ruins the basic of their Physics which Ruins there concept at the starting of any Chapter . NCERT is Consider good for its theory section , all the aspirant who secured under 1000 rank in jee mains and jee advanced will definitely recommend you this. You are too Recommend to add this Book in your book collection the question Give in NCERT are conceptual which is good to understand the application of certain concept . TIPS:- Read it once in the start of every chapter thus it will be also useful for Your boards. Focused more on the derivation and example part also the details given in coloured boxes are useful too. From Below links you can Buy These Book Online From Amazon Class 11 Part 1 Class 11 Part 2 Class 12 Part 1 Class 12 Part 2