Someone with a legitimate Airtel connection uses a software tool (like a PVR or stream capture software) to extract the streaming URL for each channel. They then compile these URLs into an M3U file and share it online.
: High-quality streaming (HD/4K) requires a stable connection, ideally Airtel Fiber extract your own playlist token from the Airtel web portal? Airtel IPTV M3U Playlist Links | PDF | Mass Media - Scribd airtel iptv m3u playlist