Hi Kanha
You could get the required value by passing parameters to your aspx page (i.e. webForm2.aspx).
E.g.
<a href="webForm2.aspx?LinkValue=<%# DataBinder.Eval(Container.DataItem,"sal") %>"></a>
Then on the PageLoad of webForm2 you can extract the value using
string MyValue = Request["LinkValue"];
With regards to having a "boundary" outside your repeater, i'm not sure i understand what you require there....