How to render data using Ajax Cakephp

Controller Code
if(!empty($conditions)){
            $this->paginate = array('limit'=>10,'order'=>'Admin.id desc');
            $adminDetail = $this->paginate('Admin',$conditions);
            $this->set('adminDetail',$adminDetail);
            if($this->RequestHandler->isAjax()){
                $this->layout = '';
                $this->autoRender = false;
                $this->render('admin_index');

            }
        }

        else
        {
            $this->paginate = array('limit'=>'10','order'=>'Admin.id desc');
            $adminDetail = $this->paginate('Admin');
            $this->set('adminDetail',$adminDetail);
            /***for pagination ajax response***/
            if($this->RequestHandler->isAjax()) {
                $this->layout = '';
                $this->autoRender = false;
                $this->render('admin_index');
            }
        }

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