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.
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
Usually Hindi or a regional Indian language (check for dual-audio tags if you open the file). The video is in Standard Definition (480p)