Hi Raghu,
If you have created that particular Keyfigure, pls do remodeling from RSA1(applicable only for BI 7 and above).
1.If you are unable to delete data from DSO , pls find DSO table name and delet it from tables.
2.Re-model the keyfigure.
3.Cross check if data got datamarted.
4.Reload the data.
Regards,
Mohammed Raheez