How to disable checkbox inside the gridview in asp.net?

I am developing one asp.net application. I have one multiselect dropdownlistbox. I have implemented this using jquery choosen pluging. User can select more than one value from dropdownbox at a time. I have one gridview below to dropdownlistbox. Logic here is values i binded to dropdownbox is equal to one of the column of gridview. This is my dropdownlistbox.

 <asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="false" 
         CssClass="limitedNumbSelect2" Multiple="True" >
                <asp:ListItem Text="Select Gender" Value="0"></asp:ListItem>
                <asp:ListItem Text="Niranjan" Value="1"></asp:ListItem>
                <asp:ListItem Text="balaji" Value="2"></asp:ListItem>
                <asp:ListItem Text="Neenu" Value="3"></asp:ListItem>
                <asp:ListItem Text="Lindhana" Value="4"></asp:ListItem>
    </asp:DropDownList>

This is my code to select multiple values from dropdownlistbox.

$(document).ready(function () {
        $(".limitedNumbSelect2").chosen({
            placeholder_text_multiple: "Please select Names here"
        })
    });

This is my clientside gridview code.

<asp:GridView ID="GridView1" runat="server" HeaderStyle-BackColor="#3AC0F2" HeaderStyle-ForeColor="White"
    AutoGenerateColumns="false">
    <Columns>
        <asp:TemplateField>
            <ItemTemplate>
                <asp:CheckBox ID="chkRow" runat="server" />
            </ItemTemplate>
        </asp:TemplateField>
        <asp:BoundField DataField="Name" HeaderText="Name" ItemStyle-Width="150" />
        <asp:TemplateField HeaderText="Country" ItemStyle-Width="150">
            <ItemTemplate>
                <asp:Label ID="lblCountry" runat="server" Text='<%# Eval("Country") %>'></asp:Label>
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

This is my server side code to populate gridview.

if (!this.IsPostBack)
            {
                DataTable dt = new DataTable();
                dt.Columns.AddRange(new DataColumn[2] { new DataColumn("Name"), new DataColumn("Country") });
                dt.Rows.Add("Niranjan", "Canada");
                dt.Rows.Add("balaji", "United States");
                dt.Rows.Add("Neenu", "China");
                dt.Rows.Add("Lindhana", "India");
                GridView1.DataSource = dt;
                GridView1.DataBind();
            }

Using jquery I want to disable the checkboxes of gridview. This is the below code for disable checkbox.

$(function () {
            $('.limitedNumbSelect2').change(function (e) {
                var selected = '';
                selected = $("#DropDownList1 option:selected").text();
                disableUsers(selected);
            });
        });
        function disableUsers(selected)
        {
            temp = selected.split(",");
            $.each(temp, function (index, value) {

            });
        }

Whenever i select Niranjan from dropdownlistbox I want to disable checkbox of corresponding row from gridview. I want to disable row of the gridview. May i get some help on this. Thank you all.