How can I migrate only new notifications?

I have created some custom notifications in one site and deleted some notifications, but when i migrate from one site to another site, old (deleted) notifications were also migrated along with the new notifications, where as i only need the new notifications. How can I do this as i am not able to delete the notifications and these deleted notifications are not available in the original site?
I am even facing module not found error in the notifications after bench migrate
Currently using erpnext in localhost