I don't think it makes sense to make a HN post with the title "Another Round of GitHub Layoffs" based on this tweet.
There was no communication/announcement, just straight away received email notifying the same and all access removed.
PS: Ex-Hubber and have so many friends in GitHub
The whole idea of Indian teams is that offshore development is cheaper.
So it seems strange they would lay off their cheaper devs.
I suspect they hired a lot of people at very high salaries and raised the salaries of existing employees to those levels as well.
If the team isn’t integral enough, it probably made sense to replace them with contractors while they rebuild the permanent team at a lower salary base.