I really want to work with discovery channel team.so how should i approach towards that side?

Sorry i don't know much about the Discovery Team... but I would ume to do some research on the Discovery Channel... Where their teams are based. Send resumes....send resumes to different sectors of the discovery depts. They are a huge channel/business someone is bound to find your resume interesting, even if it means to get your foot in the door. You sound like you belong there. Goodluck.