Rangilidhobans01ep01t041080phevcwebdlhin

This specific filename reveals a sophisticated underground supply chain:

Entertainment companies are now deploying "forensic watermarking." When a legitimate subscriber streams Episode 1 of Rangili Dhoban, a unique, invisible code is embedded into the video. If that video appears as a Web-DL, the company can trace the leak back to the specific account and user.

Other examples of such patterns include:

This is the clearest part of the string. rangilidhobans01ep01t041080phevcwebdlhin

Therefore, this file represents the very first episode of the show’s first season. If you were to look for metadata in Plex, Jellyfin, or Kodi, these tags would automatically match the file to Episode 1 of Season 1.

HEVC stands for High Efficiency Video Coding (also known as H.265).

This is a significant detail. Compared to the older H.264 (AVC), HEVC offers: This is the clearest part of the string

In piracy circles, HEVC releases are preferred for archiving because they save bandwidth and storage space while preserving 1080p quality.

The first segment is almost certainly a misspelling, concatenation, or transliteration of a media title.

Why is it spelled without spaces?
Scene rules forbid spaces in filenames. All spaces are replaced with periods (.) or just removed. Here, it is removed entirely, making the title hard to read for the uninitiated. Therefore, this file represents the very first episode

In plain English: This is the name of a TV show (likely a South Asian web series).

This guide explains likely components of the filename and how to interpret or use it (assumptions: it's a media file—TV episode or movie).