While an official Hindi dual-audio version may not be commercially available, the dedicated fan communities online make it very likely that one exists. By using specific search terms, focusing your efforts on community platforms, and being persistent, you stand a good chance of finding the file.
Instead of opting for illegal downloads, there are several legal alternatives to access "Mr. Bones" (2001) with dual audio: download+mr+bones+2001+dual+audio+hindienglish+dateien+link
Originally in English, but popular in India due to its Hindi-dubbed version. Availability & Streaming While an official Hindi dual-audio version may not