Well , After deep researching and thinking about ideas how to relocate Projects URL to new URL i have solved it out. I want to share this to every one so may be in future some one comes to this issue of relocating whole project to new one using tortoise SVN. Here what i did
- Simply , right click on Project and click on tortoise SVN icon and then click on option "Relocate" and enter the path of new URL on which you want to commit new changes of project.
here are screen shots of what i did