what is the base book for CAT previous papers

hello dear if u r beginner the u should take this book Simple and easy to understand – How to Prepare for Quantitative Aptitude for the CAT Common Admission Test 5th Edition (Paperback) by Arun Sharma, Publisher: Tata McGraw Hill 2012 Rs. 625, 2012 edition...

But if u r not the beginner then  u need For advanced and more practice – Quantum CAT: Quantitative Aptitude Common Admission Test for Admission Into IIMs (Paperback) by Sarvesh K Verma Publisher: Arihant, Rs. 650, 2013 edition.