Hi @parthiban,
I have made a snippet for you.
- Add a html page in your web application.
 
- Add a webform name it as you want.
 
Have a look on snippet.
Html Page:
<body>
    <form action="Home.aspx" method="post">
    <h1>
        Login Page</h1>
    User Name:<input type="text" name="UserName" />
    Password:<input type="password" name="UserPassword" />
    <br />
    <br />
    <input type="submit" value="Submit" />
    </form>
</body>
WebPage:
<div>
        <asp:Label ID="lblUserId" runat="server" />
        <asp:Label ID="lblUserName" runat="server" />
    </div>
Code in WebPage Server Side
protected void Page_Load(object sender, EventArgs e)
        {
            if (!this.IsPostBack)
            {
                this.lblUserId.Text = this.Request.Form["UserName"];
                this.lblUserName.Text = this.Request.Form["UserPassword"];
            }
        }