How to Migrate Gitlab repos which is in private network to GitHub. Also I need to track changes made in Gitlab should be reflected into GifHib.
There are links to options for how to import repositories that are hosted on private networks in the documentation on importing repositories. Unfortunately, these import techniques are one-time moves and don’t create any sort of auto-update mechanism like what you’re looking for. In order to do something ilke that, you would have to set up a process that would periodically download new commits from your GitLab instance and push them to your GitHub repository.
I hope that helps!