Hi Senthil,
Thank you for your interest in Syncfusion products.
Please try using Conditional statements with QueryCellInfo event to achieve your requirement.
Refer the sample from below link:
http://files.syncfusion.com/support/samples/Grid.Windows/7.3.0.20/Forums/GridComboBox.zipPlease let me know if you have any queries.
Regards,
Lingaraj S.