I know how to block event invitations from a specific friend. Is there any way to do the same for a specific friends list in Facebook?
Log into your Facebook account and choose "Privacy Settings" from the drop-down menu at the top
Next, click "Manage Blocking" next to the last option, "Blocked People and Apps."
This will bring you to the settings page for adding friends to your restricted list and blocking Facebook users, as well as blocking app and event invites.
Please read here it has a detailed information