Hi Guys i found the Answer finally.
If we are filling the Diect update DSO using ABAP . The the technical name should be hardcoded to fill the DSO in call function 'RSDRI_ODSO_MODIFY'.So if i use the
SAP standard program 'RS_ABAP_SOURCE_SCAN' to find the hardcoded values of the DSO .
The problem is solved.
Thanks guys for all your input.
Anjan