File download help required

[eluser]Computerzworld[/eluser]
Hello. I am using CI download helper for downloading the file from the server. What I want is to download the file by clicking on the download link. I have written the code like for downloading the file like this in my controller.

Code:

function forceDownload()
    {
        $this->load->helper('download');
        $data = file_get_contents(base_url().'/uploads/files/admin_uploadedFile'); // Read the file's contents
        $name = $this->fileName;        

        force_download($name, $data);
        }

and I am calling this function on click event of download link. In js I am using redirection to go to this function.

But instead of download it redirects me to the folder on the server where all files are located. I got stuck at this point. Please help me. Thanks in advance.