Hi Eswari,
Please check whether the following helps.
(1) Extend both INCL_EEW_PD_ITEM_CSF_SC and INCL_EEW_PD_ITEM_CSF with your custom field.
(2) Enhance the WD Component /SAPSRM/WDC_DO_SOCO_GAF_1 View - V_AO_SOCO_GAF_1
by adding the custom field as a new attributes on the Context Node SEARCH.RESULT_FIELDS.
(3) Add a new column in "Layout" section under the TABLE node and bind the corrispective element to the above described Context's attribute.
Regards,
Wendy