If it doesn't load, you can usually right-click the player and select Subtitles > Add Subtitle File to choose it manually.
However, for a film with as much soul as The Mummy , human-translated Bangla subtitles are still superior. A human translator understands that the phrase "Bloody blighter" should translate to a colloquial Bengali insult, not a literal phrase. the mummy 1999 bangla subtitle