@prakash,anurag,mehul,jguru: Enjoy the book, send me a copy if youve finished it.
@nitish: Books are simply not enough, you learn a lot in breaking stuffs and putting it back. My suggestion is to give a gentoo/lfs install a try when u have free time. You may fail first time, second.. third, but the understanding of UNIX and linux it gives you in unmatchable, one that none of those books or other distros will give you.
Be prepared to read a lot, Gentoo Handbook , The Linux From Scratch book should be your references should you get stuck at some point. If you are still afraid/unwilling to try what i said above, install slackware and read the slackbook, It will stand you in good stead. Start loving the command line if you want to do well with GNU.
No Pain , No Gain.
References:
1. Gentoo Handbook: *www.gentoo.org/doc/en/handbook/index.xml
2. LFS, BLFS , ALFS : *www.linuxfromscratch.org/
3. Slackbook : *www.slackbook.org/