I have qualified SCJP exam with 95% last year. Now i want to prepare for OCMJD also. Kindly Tell me from where should i start my preparations for that. Kindly suggest me some books to read. And if possible kindly send me the link also to download these books for free.
Thanking you in advace
Champ, please take a look at the ScjdFaq. It contains a lot of material that will help you get started. There's also the paper I wrote, which is a summary of the certification and the solution. You can find it here.