you can refer Arun Sharma for all the 3 subjects:-

LR/DI

VA/RC

Quants

For preparation of CAT you have to mainly focus on 3 subjects

1-quantitative ability

2-Logical reasoning

3-Verble ability

there are 2 ways to prepare for cat..fst is You will join any cochin institute or prepaee by yourself

If you join coching then their books are enough for preparation

If you want to prepare by your self then for quant you can refer Arun sharma

For logical reasoning-Lots of youtube free sources & Arun sharma also

For verble-Arun sharma..All the books are More then enough for practice..one you are done with this books then solve past CAT papers ansmd give mock test and do solutions in details..