django include tag forms

Question

I'm trying to include a template with a form to another template but when I try to use

{% include 'index.html' %}

it returns blank

forms.py

class CreateIdForm(forms.ModelForm):

class Meta:
    model = models.Authenticate
    fields = ['id', 'username', 'password']

Main template (home.html)

<h2>Below is from index.html</h2>
{% include 'index.html' %}

Side template (index.html)

<table>
<th colspan="2">Some table</th>
<form method="post">
{{form.as_table}}
{% csrf_token %}
<th colspan="2"><input type = 'submit' class="btn btn-primary" value="submit"></th>
</form>
</table>