Hi  SUJAYS ,
Pls refer below code
C#
protected void Page_Load(object sender, EventArgs e)
{
    ArrayList arrList = new ArrayList();
    arrList.Add(921);
    arrList.Add(DateTime.Now);
    arrList.Add("Mudassar Khan");
    if (arrList.Count > 0)
    {
        Response.Write("Last Item : " + arrList[arrList.Count - 1]);
    }
}
VB.Net
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    Dim arrList As ArrayList = New ArrayList()
    arrList.Add(921)
    arrList.Add(DateTime.Now)
    arrList.Add("Mudassar Khan")
    If arrList.Count > 0 Then
        Response.Write("Last Item : " & arrList(arrList.Count - 1))
    End If
End Sub
Output
Last Item : Mudassar Khan