You should have this

• MyController

  • ActionResult -> Index
  • ActionResult -> IndexPartial

• Views

  • My
    • Index.cshtml (View)
    • IndexPartial.cshtml (PartialView)

Where:

Index.cshtml as complete view will have rendered the partial view with passed model (why so? to prevent code duplication)

@model YourModelType
@{
    ViewBag.Title = "View Index";
    Layout = "~/Views/Shared/_Layout.cshtml";
}

@Html.Partial("IndexPartial", Model)

IndexPartial.cshtml is the partial view, something like

@model YourModelType

<h2>Some Title</h2>
 <div>
<h4>YourModel</h4>
<hr />
<dl class="dl-horizontal">
    <dt>
        @Html.DisplayNameFor(model => model.Property1)
    </dt>

    <dd>
        @Html.DisplayFor(model => model.Property1)
    </dd>

    <dt>
        @Html.DisplayNameFor(model => model.Property2)
    </dt>

    <dd>
        @Html.DisplayFor(model => model.Property2)
    </dd>
</dl>

Now when you want the full View use MyController/Index and when you want Partial View instead you can get it with MyController/IndexPartial

Or you can use parameter on you action to specify the output:

public ActionResult GetMyView(bool? partial)
        {
           var model  = something;
           if (partial != null && partial)
             { 
                return PartialView("MyViewPartial", model)
             }

            return View("MyView", model);
        }

call for partial = yourHost/controller/GetMyView?partial=true

Now back to your question, yes you can return Partial View as View and vice versa. But you will face problems in appended html to pages via ajax (incomplete or overloaded html).

you can use :

public PartialViewResult ActionMethodName() 
{
      return PartialView("_Index.chtml");
}

OR

public ActionResult ActionMethodName() 
{
      return PartialView("_Index.chtml");
}

1. There is no limitation and it's not consider bad practice.

2. You have a typo at the PartialView("~/Views/BasicInfo/_Index.chtml") part of your question.

   You should write return PartialView("~/Views/BasicInfo/_Index.cshtml")