VLC Media Player or MPC-HC are highly recommended as they include the necessary codecs to play MKV files.
It is an MKV (Matroska) file, a versatile container that can hold video, multiple audio tracks, and subtitles in one file. How to Play This File VLC Media Player or MPC-HC are highly recommended
Use the VLC for Mobile app on iOS or Android, or players like MX Player to ensure the video and audio play correctly. MKV Files Explained - Adobe multiple audio tracks
Episode 113 of the first season of the Kannada TV serial Kendasampige . VLC Media Player or MPC-HC are highly recommended