Content Filter based on Heirarchical Taxonomies
Create views for


Project parameters
Project sub parameters with contexual filter of project parameter taxonomy id with filter criteria
Content view with contexual filter of project sub parameters taxonomy id.


After Create these views you can call ajax api and pass those conexutal filter on ajax for particular view like,

$view = views_get_view('viewname'); //viewname is the view machine name
$view-&gt;set_display("block_1"); //block_1 is the view display name
$view-&gt;set_arguments($tid); //$tid is the argument to pass
$view-&gt;pre_execute();
$view-&gt;execute();
$content = $view-&gt;render();


I got the success by this way.

Hope this answer help somebody.