Some of the recommended books for AEEE are given below :
Physics - Concepts of Physics by HC Verma
Chemistry - Chemistry by Pradeep's Publication
Mathematics - Mathematics by RD Sharma
You should also give more importance to NCERT Textbooks.Check out the link below for free downloading of books :
The main prescribed book is NCERT. For reference you can read :-
- Concepts of physics by HC Verma
- chemistry by OP Random for all the sections (organic, physical, inorganic)
- mathematics from NCERT, RDSharma.
There is no important book other than prescribed ones. Important is how you study and practice which will make you confident to solve problems more accurately.
your performance is directly proportion to your practice and understanding. If you look for selective things then you will miss the details which is highly important.
so cover section by section, easy to hard, examples to excersice. This is the flow. If you find difficult then draw diagrams to remember.
hope it helps!