Unfortunately, an official Hindi-dubbed version does not exist on major OTTs. However, fan-made dubs are occasionally uploaded to YouTube by license holders under "creative commons" channels. Always check the "Movie Synopsis" for language options.
Before we discuss download options, let's understand why this film is worth your time. The Man From Earth Hindi Download
However, you can find the story in Hindi through an official remake and video explanations: Official Hindi Remake : A film titled Mano Ya Na Mano – Anything Is Possible The Man From Earth Hindi Download