Hi Krishna ,
Thanks , I prepared with
SCJP 6 - Kathy Sierra & Bert Bates Book , and had a overview on SCJP -6 Khalid Mughal Book ,
but practiced the mock exams with OCP
Java SE 6 Practice exams Book by - Kathy Sierra , took the four practice exams from the book which was more help full during my final exam,
the final exam was much easier than the mocks