@Html.LabelFor(m => m.OrganisationId)

[DisplayName("OrganisationId *")]
[Required(ErrorMessage = "OrganisationIdis required")]
public string OrganisationId { get; set; }

@Html.LabelFor(m=>model.OrganisationId)

[Required]
  [UIHint("RequiredTemplate")]//this does the trick which should match the file name.
  [Display(Name="Organization Id")]
  public string Name { get; set; }

<font style="color:Red">*</font>@Html.LabelFor(m => m)

<div class="display-field">
     @Html.DisplayFor(m => m.Name)
 </div>

public static MvcHtmlString LabelForX<TModel, TValue>(this HtmlHelper<TModel> html, Expression<Func<TModel, TValue>> expression, string requiredText = "required", string innerText = "*" )
{
    ModelMetadata metadata = ModelMetadata.FromLambdaExpression(expression, html.ViewData);
    string htmlFieldName = ExpressionHelper.GetExpressionText(expression);
    string labelText = metadata.DisplayName ?? metadata.PropertyName ?? htmlFieldName.Split('.').Last();
    if (String.IsNullOrEmpty(labelText))
    {
        return MvcHtmlString.Empty;
    }

    var tag = new TagBuilder("label");
    tag.Attributes.Add("for", html.ViewContext.ViewData.TemplateInfo.GetFullHtmlFieldId(htmlFieldName));
    tag.SetInnerText(labelText);

    if (metadata.IsRequired)
    {
        var span = new TagBuilder("abbr");
        span.Attributes.Add("title", requiredText);
        span.Attributes.Add("class", "labelRequired");
        span.SetInnerText(innerText);
        tag.Attributes.Add("class", "labelRequired");
        tag.InnerHtml = span.ToString(TagRenderMode.Normal) + "&nbsp;" + labelText;
    }
    return MvcHtmlString.Create(tag.ToString(TagRenderMode.Normal));
}

@Html.LabelForX(x => x.YourRequieredField)