Does the file /export/home/muthu/prod_12-09-2010 exist on your remote host ?
Is it a directory in which you want your directory to be copied, or is it the new name under which you want your directory to be copied?
---------- Post updated at 12:06 PM ---------- Previous update was at 11:59 AM ----------
cd "directory name"
scp -r ./* user@remotehost:/export/home/muthu/prod_12-09-2010/
Will copy the files of "directory name" in "prod_12-09-2010"