Hi,
You can refer to the following books for your preparation
1. Quantitive Aptitude by R S Agarwal
2. Verbal and Non-verbal Reasoning by R S Agarwal
3. General English by R S Agarwal
You also need to know about the Mathematics up to class 10, and General Knowledge. If you are good at this you don't need a book.
I hope it helps.
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