Hi @sindhugandu,
Please try using the Deaggregator to break up the multipoint before writing to Geodatabase.
@sindhugandu I can't reproduce your issue. As @daveatsafe suggests, try deaggregating your points. FME will report a warning if you try ad load multipoints into a feature type configured for point geometry:
WARN |The feature class 'CSV_multipoint' will be created to store multipoint features rather than point features, since the first feature destined for this feature class is a multipoint
See the attached example (2019.2): multipoint.fmwt