Hi malar,
Check this example. Now please take its reference and correct your code.
Model
public class Project
{
    public string PROJECTFROMDATE { get; set; }
    public string PROJECTFROMDATE1 { get; set; }
}
Controller
public class HomeController : Controller
{
    // GET: Home
    public ActionResult Index()
    {
        Project project = new Project();
        return View(project);
    }
}
View
@model Datepicker_Model_MVC.Models.Project
@{
    Layout = null;
}
<!DOCTYPE html>
<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Index</title>
    <link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" />
    <script src="http://code.jquery.com/jquery-1.9.1.js"></script>
    <script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
    <script>
        $(document).ready(function () {
            $(".getdate").each(function () {
                $(this).datepicker();
            });
        });
    </script>
</head>
<body>
    @Html.TextBoxFor(m => m.PROJECTFROMDATE, new { @id = "txtPROJECTFROMDATE", @class = "getdate" })
    @Html.TextBoxFor(m => m.PROJECTFROMDATE1, new { @id = "txtPROJECTFROMDATE1", @class = "getdate" })
</body>
</html>
Screenshot
