This is the uploader’s signature (likely standing for Bengali Group SkyMoviesHD ).
The use of is particularly important in regions with limited internet bandwidth or storage. It allows a full-length movie to be compressed down to roughly 400MB–700MB while retaining 720p clarity. Sites like SkyMoviesHD use these tags to build "brand" loyalty among users who want consistent quality and small file sizes.
The "Matroska" container format, which allows for multiple audio tracks and subtitle files to be bundled into one video file. Context: The 2019 Bengali Cinema Landscape
The title you provided is a dense string of metadata used by file-sharing communities to describe the quality and source of a movie:
