Hi Mukesh,
Sorry for the late response.Just been busy for a while.
i see you got confused a bit. though, i am glad you have found the answer.
Reagrding Document Type configuration
Goto Tcode DC10
or SPRO->Cross Applications Components->Document Management -> Control Data
under that you may find all the transactions required for configuring a document type.
Business Object is: DRAW. (goto SWO1 and search for DRAW for more details)
table : DRAW
DIR is nothing but the document Info Record, which acts as primary key for each document.
Creating a Document Type is also a simple task,
Cheers!
