Hi manishdubey21211,
If you are using property "SaveDirectory" to save the upload file, then can not get the new file name after uploaded.
I suggest you use method "CopyTo" and "MoveTo" to handle the upload file store location and the file name, so you can get the new name because you can get and set the file name before it save to your server.
More details about method "CopyTo" and "MoveTo" please refer to http://phpfileuploader.com/document/scr/Choose-upload-method.htm
Regards,
Ken