Hi Surya,

You can use the following event handler to achieve this requirement:
http://docs.telerik.com/devtools/aspnet-ajax/controls/grid/client-side-programming/events/onbatcheditcellvaluechanged

And depending on the entered value, you can access the generated Batch edit control for the other column (RadNumericTextBox) and set its maxValue using the set_maxValue method:
http://docs.telerik.com/devtools/aspnet-ajax/controls/input/client-side-programming/radnumerictextbox-client-object

You can check the following post for further clarification on Batch editing:
http://www.telerik.com/forums/radgrid-within-dataform#n5vi8Bq46UaeI2H-tURExg

I hope this will prove helpful.

Regards,
Eyup
Telerik by Progress