The film was officially dubbed in Hindi. You can find Hindi audio tracks on Amazon (Physical Blu-ray) and occasionally on digital stores like Flipkart . Most digital platforms like Prime Video typically list available audio languages in their "Details" or "Audio" section before you play the movie. Film Summary
A list of that currently offer the Hindi dubbed version? 300 Rise Of An Empire Download In Hindi Mp4moviez
For those still interested in using Mp4moviez, here is a general guide. Please note that accessing copyrighted material without permission is illegal in many jurisdictions. The film was officially dubbed in Hindi