Hello Anamika,

There are many books, the best thing is to purchase previous year paper book, that has around 10 years of previous year papers.

Some of the good books are mentioned below:

1. Word Power Made Easy

2. Butterworths

3. Lexis Nexis

4. Analytical Reasoning

5. Verbal Reasoning

6. Analytical and Logical Reasoning

7. Objective Arithmetic

8. GK Today

9. Manorama Year Book

10. India Year Book

11. Universal’s LLB Entrance Guide

You may please refer to the below article for downloading books or knowing other good books for CLAT PG:

https://law.careers360.com/download/clat-pg-ebooks

https://law.careers360.com/articles/best-books-for-clat

Hope this Helps