Short answer: CLAT is reading-heavy, so build a daily habit of passages and current affairs, and add one practice book per section.
Reading habit
Read editorials and long passages daily. Comprehension speed and accuracy decide a large part of the paper.
Legal reasoning practice
Use a practice book that gives principle-based questions and explanations. Focus on understanding why an answer is right, not memorising options.
Current affairs and GK
Use a monthly compilation or a trusted news source, and revise in short notes. Prefer recent editions for this section.
Quant and logic
Quantitative questions are basic-level, so a short practice book is enough. Daily practice matters more than volume.
Frequently asked questions
Do I need many books for CLAT?
No. A reading habit plus one practice book per section is a strong base.
Can I buy CLAT books second hand?
Yes for practice books of a recent edition. Prefer the latest edition for current affairs.