I have some configuration files in my solution. For development purpose I've done some configuration changes in those files. But i don't want those files to be get committed / pushed in my develop branch in GitHub repository. Is there any way I can add file names which I want to skip at the time of commit and push?
You simply can mark it as to ignore local changes (not with .gitignore since it is already tracked), using git update-index --assume-unchanged
git update-index --assume-unchanged -- my-config-file
(You also have git update-index --skip-worktree: see the difference here)
A git pull would reset that flag.
To remove said flag manually: git update-index --no-assume-unchanged -- my-config-file.