How to Download files using asp.net?

Hi, I am developing a project where, the user can upload and download the files. I completed the upload option and displayed the file name which is uploaded to the server. Now, if user need those files, then he can able to download the selected file (which is uploaded recently). I don't know how to download those files and its contents. I need to put a download link, it is possible to download those files in asp.net? Could anybody help me plz?