You're looking for a Hindi audio track download for MX Player. Here are some steps and resources to help you:
If your video file already includes multiple languages, you can switch to Hindi directly: Open the Movie : Play your video file in the MX Player app Access Audio Menu Music/Sound icon located at the top right of the playback screen. Select Track : A list of available tracks will appear. Choose Troubleshooting : If you select Hindi and hear no sound, tap the button (often labeled HW or HW+) and switch to SW Decoder 2. Import External Hindi Audio Hindi Audio Track Download For Mx Player