Dhrumil,,, Try Going to MySolidworks > Training > Learning Path and see if you have access to CSWA & CSWP tutorials. It has been awhile since I have done this but I'm pretty sure this was very helpful to me. When you get to your CSWP do not underestimate the importance of replacing a part in an assembly. You can also go to YouTube and find very valuable information. I would highly suggest you check out Rachael Yorks prep tutorial (on YouTube). This will really help as far as what to expect prior to taking the exams. Get you comfortable with the Virtual Tester. It covers just about everything and when you take the tests you will feel like you've been there before.
Aside from the great advice that Dennis has already given you, there are sample exams to be found here with sample models that should prepare you for what you need to do to be ready. Certification Catalog | Certification | SOLIDWORKS
Dhrumil, check these post for some more guides related to CSWP: https://forum.solidworks.com/message/457528#comment-457528
Also the virtual tester has trial exams now which users can take to prepare well.