Hi Rajat,
Below thraed will give u complete idea and support to plan and implement but still i recommend u that first u need to work under some project in implemenation team and learn.
Please refer below
https://www-secure.symantec.com/connect/forums/symantec-dlp-implementation-planning-and-design-enterprise#comment-8429811
https://www-secure.symantec.com/connect/forums/why-i-should-implement-dlp-and-what-its-important-me#comment-8436391
https://www-secure.symantec.com/connect/articles/important-links-training-videos-certification-symantec-endpoint-security
https://www-secure.symantec.com/connect/forums/dlp-features#comment-8332801
https://www-secure.symantec.com/connect/forums/demo-dlp-video-tutorials-documentation-how-tos#comment-8438411