You can prefer all the books that consists of basic knowledge in Maths, English, Current Affairs, General knowledge, Reasoning. Here are some of the books you can prefer given below:

General Knowledge and Scientific Aptitude-

Manorama Yearbook

Pratiyogita Darpan

Lucent’s GK

Arihant General Knowledge

Numerical Ability and Analytical Aptitude

RS Aggarwal (Quantitative Aptitude)

Reasoning and Logical Deduction

Quantitative Aptitude Question Papers

Verbal and Non-Verbal Reasoning by RS Aggarwal

Verbal Reasoning Book by R S Agarwal

English Language

Wren and Martin

Pearson’s English

Arihant General English Book

Good Luck!