Hello Hardik,
You can achieve this requirement using the fireCommand method in combination with the EditSelected command:
http://docs.telerik.com/devtools/aspnet-ajax/controls/grid/client-side-programming/gridtableview-object/methods/firecommand
Similar functionality you can find in the first grid from the following live sample:
http://demos.telerik.com/aspnet-ajax/grid/examples/data-editing/commanditem/defaultcs.aspx
I hope this will prove helpful.
Regards,
Eyup
Progress Telerik