Asp.NET Core Model Binding input type checkbox not remains unchecked

I am facing some strange issue, I am using Asp.net Core.

I have Model class which I am binding to my razor view and here is the model implementation.

        {
            PatientDetailReport = new ReportModel();
            itemid = true;
        }
public ReportModel PatientDetailReport { get; set; }
        public bool itemid { get; set; }

Report Model Class has few bool properties like public bool IdentityNumberDisplay { get; set; }

I am trying to bind model in both of these ways as mentioned by mostly blogs and also on stackoverflow

      (1) <input type="checkbox"  asp-for="@Model.PatientDetailReport.IdentityNumberDisplay"   />
     (2)  @Html.CheckBoxFor(m=>m.PatientDetailReport.IdentityNumberDisplay,new { })
    </td>

but both of these cases remains unchecked.

for first case, I also tried with value=@Model.PatientDetailReport.IdentityNumberDisplay but at jquery level I have to check it with value =True or False (as string) I am able to modify the checkbox, but the value is not posting on Controller.

Please can anyone guide me regarding to this case. Why the case 2 is not working,however most of the blogs are saying to use like that?

Thanks