To understand this, we have to think like a content executive. Dubbing is expensive. It requires hiring voice actors, directors, sound engineers, and post-production facilities. When streaming services look at a library title like Prison Break , they prioritize dubbing for the seasons that drive the most "new" viewership or that feature the most action-heavy sequences (which travel better across languages).
have recently received Hindi dubs for Indian television (e.g., on Zee Café), Prison Break has remained in its original language on digital platforms. Unofficial/Third-Party Sources Is Prison Break Available In Hindi Dubbed Season 1
One prevailing theory is that the Hindi dub for Season 1 was produced years ago for television broadcast (on channels like Star World or FX), but it was mastered in standard definition. When streaming services moved to HD and 4K, the cost of remastering that old audio track to sync perfectly with the high-definition video wasn't deemed profitable. It’s cheaper to dub the later seasons from scratch in a modern studio than to fix the “antique” audio of Season 1. To understand this, we have to think like