The string is designed for search engine optimization (SEO). By including every possible keyword—the year, the quality, the language, and the uploader—the distributors ensure that when a user types "Sinam Hindi Dubbed" into a search engine, this specific file appears first.
Indicates that the file is not in its original Tamil audio but has been dubbed into Hindi with "High Quality" audio, targeting the massive North Indian and South Asian diaspora markets. 1337xhd-shop-sinam-2022-mlsbd-shop-hindi-hq-dubbed-720p-mkv
These are branding tags for specific "uploaders" or affiliate websites (likely 1337x and MLSBD ) that distribute content. They act as a "seal of quality" within the piracy community. The string is designed for search engine optimization (SEO)