Hi Mohammed Abrar Ul,
Currently, DataGrid does not have support for merge rows and cells. We have already considered your requirement as a feature request. We will implement this feature in any of our upcoming releases. At the planning stage for every release cycle, we review all open features. We will let you know when this feature is implemented. You can follow up with the below feedback for further details,
Please let us know if you need any further assistance. We will be glad to assist you.
Regards,
Tamilarasan P