how a fresher get job in designing companies if companies only want experience holders ?

One word: Internship

My company hires loads of interns and almost all of them are offered full time positions at the end of it.

Does your school have a placement office.

Companies that list positions with schools understand that students don't have experience.

Have you completed the CSWA?
Have you completed the CSWP?

Do you have an on-line ePortfolio?