Hello Friends, Here is the code to check on frontend (i.e. in any frontend file) whether the admin is logged in or not in Admin Panel.

<?php
	require_once('app/Mage.php');
	Mage::app('default');
	Mage::getSingleton('core/session', array('name' => 'adminhtml'));
	$session = Mage::getSingleton('admin/session');
	if ( $session->isLoggedIn() ) {
	echo "logged in";
	} else {
	echo "not logged in";
	}
?>

Thanks,