What are the recommended books/materials for the CAT exam preparation?

Hi Sumit: Giving you some reference books name:

For Quantitative Aptitude-
1)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
2)The Pearson Guide To Quantitative Aptitude And Data Interpretation For The CAT by Nishit Sinha, Publisher: Pearson. Rs. 650, 2012 edition.
3)NCERT Mathematics books for Class 8, 9 & 10.

Data Interpretation & Logical Reasoning:
1)How to Prepare for Data Interpretation for the CAT Common Admission Test 1st Edition (Paperback) by Arun Sharma Publisher: Tata McGraw-Hill Rs. 550, 2012 edition.
2)The Pearson Guide To Verbal Ability And Logical Reasoning For The CAT 1st Edition (Paperback) by Nishit K. Sinha. Publisher: Pearson. Rs. 599, 2012 edition.

For Verbal Ability:
1)How to Prepare for Verbal Ability and Reading Comprehension for the CAT Common Admission Test 4th Edition (Paperback) by Meenakshi Upadhyay, Arun Sharma. Publisher: Tata McGraw Hill, Rs. 575, 2011 Edition.
2)Word Power Made Easy by NORMAN LEWIS Rs. 149, 2011 edition.
3)A Communicative Grammar of English By: Geoffrey Leech Rs. 500, 2003 edition.

All the Best!