Just want to add couple more points, that item above is griddataitem. Below is the code where we defined item.
Dim item As GridDataItem = DirectCast(e.Item, GridDataItem)
New version of telerik dll we are using is Telerik.Web.UI dll (version # 2015.2.623.40).
Old veresion of telerik dll we are using is 2012.1.411.40