Hi Santosh,
Again the similar thread to your other two. Image may be NSFW.
Clik here to view.. If you read through the note and follow the link mentioned in the thread http://scn.sap.com/thread/3376457, you will understand that the tables containing the data remain in BW itself. The data loading can happen same way as you load the data to the InfoCube or DSO.
So you don't have to worry about loading data to the underlying tables, if you have your regular BW loading process in place.
Also, if you are satisfied with the answer kindly close this thread and continue the discussion on the other thread.
Regards,
Ravi