Hi Nalin,
Thank you for your interest in Syncfusion Products.
You can hide certain columns in MultiColumnComboBox by using ColHiddenEntries property. Please refer to the following UG article on this
http://www2.syncfusion.com/ug_61/toolswin/HidingAColumn.html Please refer the sample in the below location that illustrates the above.
http://websamples.syncfusion.com/samples/Tools.Windows/F72101/main.htm Please let me know if this helps.
Regards,
Anupama