This feature is common in open-source media players (like VLC) or specialized "dual-audio" streaming platforms.
While the core movie tracks remain the official dubbed versions by Aradhana Films and Sound & Vision India, recent "new" audio content includes: iron man hindi audio track new
Since "New" tracks are often fan-made syncs, make sure to mention in the comments that they need to mux (merge) the audio file with the video using software like MKVToolNix or MX Player on Android. This feature is common in open-source media players