Sunil,
I am also Planning to take the SCJP exam around March End, and I am going to start preparing for the exam starting next week.
Please refer to the JavaRanch policy regarding posting exam questions.
http://www.javaranch.com/realquestions.jsp The below Book I have been suggested from JavaRanch members.
Sun Certified Programmer for
Java 5 Study Guide (Exam 310-055) by Katherine Sierra, Bert Bates.
Hope this helps. All the Best for your exam preparation.