Steps for workaround:---------------------------a. Export pGDB feature class into shape file then re project the shape file as followsb. Use ArcTools -> Data Management Tools-> Projections and transformations->feature-> project-> give the input data and output data path locations -> give NAD83 coordinate systemc. Select geographic Transformation(optional) ->NAD_1927_To_NAD_1983NADCONd. Press "OK"e. After re projecting the shape file into NAD83 ->convert shape file into pGDB feature class. That works perfectly