The mention of "Mr. Bachchan 2024 Hindi HQ Dub" alongside a reference to a notorious piracy website like "wwwrepack downloadhub" immediately raises several red flags. This seems to be an attempt to circulate or download a potentially pirated version of a movie or content that hasn't even been officially announced or released. As of my last update, there hasn't been any widely recognized movie or media titled "Mr. Bachchan" released in 2024, especially not one that would be associated with high-quality (HQ) dubbing in Hindi.