How to validate form using jquery in asp.net without plugin on clientside

<form id="form1" runat="server">
    <div id="registration">
    <h1>Registration</h1>
        <table>

            <tr><td>StudentID</td><td>
                <asp:TextBox ID="txtstdid" runat="server" Width="200" Height="20"></asp:TextBox></td></tr>

            <tr><td>Name</td><td>
                <asp:TextBox ID="txtname" runat="server" Width="200" Height="20"></asp:TextBox></td></tr>

            <tr><td>RollNumber</td><td>
                <asp:TextBox ID="txtrnum" runat="server" Height="20" Width="200"></asp:TextBox></td></tr>
            <tr><td>Course</td>&nbsp<td><asp:DropDownList ID="drpcor" runat="server">
                <asp:ListItem Text="B.Tech"></asp:ListItem>
                <asp:ListItem Text="M.Tech"></asp:ListItem>
                <asp:ListItem Text="MCA"></asp:ListItem>
                                  </asp:DropDownList>
</td></tr>
            <tr><td>Section</td><td><asp:DropDownList ID="drpbrn" runat="server">
                 <asp:ListItem Text="Select"></asp:ListItem>
                <asp:ListItem Text="A"></asp:ListItem>
                <asp:ListItem Text="B"></asp:ListItem>
                <asp:ListItem Text="C"></asp:ListItem>
                                   </asp:DropDownList>
</td></tr>

            <tr><td>Email</td><td>
                <asp:TextBox ID="txtemail" runat="server" Width="200" Height="20"></asp:TextBox></td></tr>
            <tr><td>Address</td><td>
                <asp:TextBox ID="txtaddress" runat="server" TextMode="MultiLine" Height="20" Width="200"></asp:TextBox>
                </td></tr>
            <tr><td>Photo</td><td>
                <asp:FileUpload ID="FileUpload1" runat="server" /></td></tr>

            <tr><td>&nbsp</td><td><asp:Button ID="btnsubmit" runat="server" Text="Submit"/></td></tr>

        </table>

    </div>
    </form>