Dear aspirant,

No single book is enough to get good marks in any AEE exam however a combination of both good books and a schedule preparation is more than enough to get the desired marks. If you are having problem with NCERT textbooks then you can use some other help books for your exam like HC Verma or ABC or Pradeep help book. these books have elaborative definitions of the topics which are shortened in NCERT textbooks. And definitely you will get help from solvingsample papers for physics to get good marks however if you don't have good foundation then you might struggle to get past 90% in your final exam. Try to study the topics you are not comfortable with true help books and practice the topics which you are comfortable through sample papers.

Good combination will get you 90% marks.

Hope this helps. Thank you.