which basic book is best for cat quantative aptitude from basics

CAT Books For Quantitative Ability:
1.NCERT mathematics books (from 6th to 10th class) ::
These books are a good way to start if one needs to clear their basics and concepts. NCERT books are best to start your CAT Preparation with only if you have a lot of time before your exam date and need to brush up on concepts before solving advanced problems.

2.How to Prepare for Quantitative Aptitude for the CAT (by Arun Sharma)
(publisher: Tata McGraw Hill)
This is a very popular book among CAT aspirants and really easy and simple to understand. This book also focuses on the basics first and has different levels of difficulties step by step.

3.Quantitative Aptitude for Competitive Examinations (by Abhijit Guha)
This book is quite comprehensive for various competitive exams, for both MBA aspirants and for those seeking jobs who need to prepare for the aptitude tests.
4.Quantitative Aptitude Quantum CAT by Sarvesh Verma
It is an extensive book for students aspiring to go to IIMs. It has a very simple, lucid and tailor made content revolving around CAT.

5.Quantitative Aptitude for CAT (by Nishit Sinha)
This book by Pearson focuses on in depth understanding of core topics for basic and advanced applications.