For uploading multiple files first we have to download multipartfile master plugin file from  http://www.fyneworks.com/jquery/multifile/ then we have to include its file into our code as shown below.

<script src="path/to/your/jquery.MultiFile.js" type="text/javascript" language="javascript"></script>

Then we have to put following code into our view document.

 <?php echo $this->Form->input('pic.',array('label'=>'','class'=>'multi with-preview','type'=>'file'));?> 

Below is the logic for our controller.

public function registration(){
if (isset($this->data["Image"]["pic"]) && $this->data["Image"]["pic"] != "") {

      foreach($this->data["Image"]["pic"] as $key){
            
           
           
            $imgData['file'] = $key;
            $imgData['name'] = $key['name'];
            $imgData['path'] = WWW_ROOT . '' . 'imag/';// path where the image will we copied
          
            $user_image = $this->Qimage->copy($imgData);//Qimage copy function

                   // Qimage resizing function,
                    $this->Qimage->resize(
                                            array(
                                              'height' => 80, 
                                              'width' => 80, 
                                              'file' => $imgData['path'].$user_image, 
                                              'output' => WWW_ROOT. 'imag/thumbnail/'  // path where the image will we uploaded after resizing
                                )
                            );

          $imgRec['Image']['pic']= $user_image;                                
          $imgRec['Image']['username']=$user['username']; 
          
          $this->User->create();
          $this->Licence->save($imgRec);          
        }

     }
        else{
            $user_image = "";
        }

}