Hi Jayashree,
You can get all the details regarding the SCWCD exam from the sun's site. You can get it
here. But anyway the pass score is 62%, so need to get 43 correct out of 69 questions. You can get good practice tests of the exam at
www.j2eecertificate.com. The Head First
Servlets and
JSP, published by o'reilly and SCWCD Exam Study Kit, by Hanumant Deshmukh and Jignesh Malavia, published by Manning Publications Company would be really helpful.
And if you search through this site you can get hold of numerous links which are useful for your preparation.
All the best for your search and also for the exam !!
- John