This indicates the source of the video. "WEB-DL" means the file was losslessly ripped from a streaming service (like Netflix, Hotstar, or Amazon Prime) rather than being recorded in a theater (CAM) or transcoded from a disc.
These are "tags" or signatures from the specific piracy groups or websites that uploaded or re-indexed the file. 1337x is a well-known torrent indexing site. mlsbd is a popular South Asian regional file-sharing site. Security Warning 1337xhd-shop-dhamaka-2022-mlsbd-shop-telugu-web-dl-720p-mkv
Accessing or distributing copyrighted material without authorization is illegal in most jurisdictions. This indicates the source of the video
Piracy sites frequently bundle movie files with adware, spyware, or ransomware. 1337xhd-shop-dhamaka-2022-mlsbd-shop-telugu-web-dl-720p-mkv