If you are looking to watch Patrick Bateman's descent into madness legally and in the best possible quality, you can check the following platforms (availability may vary based on licensing):
The film has seen a massive resurgence in popularity recently, becoming a staple of "Sigma" internet culture and memes, which has driven a high volume of searches for Hindi-dubbed versions across the Indian subcontinent. Is there an official American Psycho Hindi Dub? American Psycho Hindi Vegamovies
Often available for rent or purchase through the Prime Video Store. Apple TV: Available for high-definition rental or purchase. If you are looking to watch Patrick Bateman's