Hi Rakhi,
Greetings from Syncfusion support,
We have validated your reported query. By default, the dialog is center positioned in order to position to the center of the grid you can set the dialog target as the grid in the dataBound event. We have also prepared a sample based on your requirements.
Can you please try out the above solution and let us know if it meets your requirements?
If no, can you please share us more details regarding this so that we can validate and provide solution at earliest.
Regards,
Indrajith