These are tags from the site or release group that distributed the file. DesireMovies is a known site for hosting movie and series downloads, often specializing in Bollywood, Hollywood, and regional Indian content.
The Matroska Video container, which is a common format for high-quality video files that can hold multiple audio and subtitle tracks. Summary of the Content ep-1-to-6-ymrcalling-s01-480p-hd-desiremovies-lol-1-mkv
Files originating from sites like DesireMovies are often distributed via third-party hosting services. If you are downloading these, ensure you have an active ad-blocker and up-to-date antivirus software, as these sites frequently use aggressive pop-up advertisements. These are tags from the site or release
This file contains the first six episodes of the series, likely bundled together. Summary of the Content Files originating from sites
The video is in Standard Definition (480p). While the filename includes "HD," 480p is technically SD; this label is often used by uploaders to indicate it is a high-quality rip of a standard-definition source.
Usually Hindi or a regional Indian language (check for dual-audio tags if you open the file).
This refers to the show's title. YMR Calling appears to be a regional drama or web series (often associated with Indian regional content or independent web platforms). Season (s01): This is the first season of the show.