Hi Yogesh,
1 ) Check whether any soft links exist from /usr/sap/SID/<instanc>/exe to /sapmnt/<SID>/exe
If there are any softlinks delete them and copy the filesfrom /sapmnt/SID/exe to /usr/sap/ID/<instanc>/exe
or use sapcpe
if you are using sapcpe use the command
/sapmnt/NP3/exe /sapcpe pf=/usr/sap/NP3/SYS/profile/NP3_DVEBMGS00_EXPSPRD ( the files under /usr/sap/NP3/<INSTANCE>/exe should be cleared )
2 ) check whether the link
/usr/sap/NP3/SYS/exe/run points to the actual /sapmnt/SID/exe directory
Thanks ,
Manu