Next, "bolly4uorg" is a torrent site. The user is likely referring to the availability of the movie on this site. WebDL usually means a Web Download, which is a source of the movie from the web, often from streaming sites. Dual audio implies the video has two audio tracks, maybe Hindi and another language like English or another regional language. The "72" part is a bit unclear. It could be a resolution like 720p or 1080p, but 720p is common. However, 72 is shorter. Maybe it's a typo or refers to the quality. Alternatively, it could be part of the site's naming convention. I should note that possibility.