[CentOS] NFS still serving old directory after rename

Howdy,

I have renamed a directory on NFS ver 3 server and then created a new
directory again with the same name.
# mv dir dir-hosed
# mkdir dir

The directory is auto-mounted on client side. I had unmounted
directories on client side before making above changes. Now when I try
to mount back 'dir', I still see old files and not new empty dir. Am I
missing something here in the NFS config? Is it caching old directory
contents? Any help?

thanks,
neuby.