Hello Shreesh,
I am afraid that such scenario cannot be supported at the moment out of the box. Having multiple cells in a single column is currently not supported. As for the editing - it is a further issue, as the specified cell can only have one value bound to the dataSource and one value being edited.
Regards,
Kiril Nikolov
Telerik
Check out the Telerik Platform - the only platform that combines a rich set of UI tools with powerful cloud services to develop web, hybrid and native mobile apps.