R.S Agarwal's CAT book
http://bookfundas.com/quantitative-aptitude-for-competitive-examinations-by-rs-aggarwal
Covers all the topics and gives great practice..i just downloaded it today
You need to download all the 6 parts from the site for the book to open
So in all its a 300 Mb download.People from my college, who cant really download it,can take it from me