MVC :: Update Multiple Users At A Time?

I have to update the users based on input value..

here is my code..

<fieldset>
<legend>StudnetInfo</legend>

here i have two textboxes and two dropdown list boxes.. this is the fiedlset user is going to enter their information..

</fieldset>

on the same page i have couple of other Fieldset with there studentInfo with twotextboxes and two dropdownlistboxes smililarly above Fieldset..this data dynamically generated from database for each users.

so all here my intension is insted of updating each and every Fieldset i made one generic fieldset to update all other Fieldsets information

on the Generic view I have this BeginForm

<% using (Html.BeginForm("Update", "home", FormMethod.Post,
new { @id="studentid"}))
{ %>

my JsonResult is

public JsonResult Update(StudentBE e)
{
try
{
var UStatus = Generic.UpdateStudent(e.student,"","");
return Json(UStatus.ToString());
}
catch (Exception ex)
{
return Json(ex.ToString());
}
finally
{
}
}

using this I can update only one user perfectly but I need to loo update all users based on generic Filedset values?