--- UploadInterface.php	2017-02-21 14:36:37.621603464 +0530
+++ UploadInterfacenew.php	2017-02-21 14:44:17.244602849 +0530
@@ -105,7 +105,7 @@
     else {
       drupal_unlink($source_url);
       $exploded_img = explode('/', $source_url);
-      drupal_set_message($exploded_img[count($exploded_img) - 1] . t('  image is not jpg hence not uploaded.'), 'status');
+      drupal_set_message($exploded_img[count($exploded_img) - 1] . t('  Successfully uploaded the zip file.'), 'status');
     }
     return $destination_url;
   }