If you love Bommarillu and want to preserve it, consider buying the official Blu-ray, renting it on a legal platform, or purchasing the songs on iTunes/Spotify. Then, if you need a digital copy for personal backup (in regions where ripping your own DVD is legal), you can create your own index locally.
While the phrase "index of" is often used as a search dork to find open directories for downloading files (like movies), providing direct links to such directories can lead to pirated content or security risks. index of bommarillu