Django: Select option in template

In my Django template, I am using the list of objects in a drop down menu. I am processing it based on the selection.

The HTML Template:

<select id="org" name="org_list" onChange="redirectUrl()">
  <option  value="" selected="selected">---SELECT---</option>
  {% for org in organisation %}
   <option value="{{org.id}}">{{org.name|capfirst}}</option>
  {% endfor %}
</select>

The problem is that when I am selecting the value from the drop down menu, I am getting the contents which belong to the selection. Since the attribute selected="selected" which only fixes to the "---SELECT---" element, unless I put the selected="selected" in

<option value="{{org.id}}" selected="selected">{{org.name|capfirst}}</option>

In these organisation, the last iterated element is only being fixed with drop down. But I want the selected element to be displayed in the drop down menu.

How can I solve this issue?