Hi Alok,
Suppose, if you want to check for ME51N(PR Creation).
Create new screen to enter the emp number and password and create TCode like ZME51N.
Valid the emp number with HR tables and also validate the authorization of TCode using ZTable.
Then Export and import the Emp number thro user exit or BAdi and store into EBAN table and field name is Tracking number for reference.
Arivazhagan S