one of the business users is ftping files into unix box using user name ftp_user, where as i am using infa_user to login into same unix box. When i am trying to access those or copy over those files from upload directory it says permission denied.
Though i know the password of ftp_user to manually go to that directory and update the permissions for that particular file. But it has to be automated, i mean when ever the user places or ftpies the files to the upload directory using ftp_user as username the file permissions should be applied automatically to able infa_user to access those files. Could you please me help on this.

Present File permissions:
Expected File Permissions:
Thanks a lot!