An M3U (Moving Picture Experts Group Audio Layer 3 Uniform Resource Locator) file is essentially a text file that contains the locations of media files. In the context of IPTV, an M3U file tells your media player (like VLC, TiviMate, or Kodi) where to find specific TV channels.
When using the Airtel IPTV M3U playlist GitHub link, keep the following tips and precautions in mind: airtel iptvm3u playlist github link