Hi Rajamohan,
Thank you for your continued your interest in Syncfusion products.
Please refer the below kb article to move the rows in GridDataBoundGrid Up and Down and let me know if this helps.
http://www.syncfusion.com/support/kb/grid/Default.aspx?ToDo=view&questId=98Please Open new Direct Trac incident, so that you can get faster support.
Best Regards,
Srirajan.