The Hangover trilogy frequently streams on premium subscription platforms such as Netflix or Amazon Prime Video. Check their audio options menu to toggle the language track from English to Hindi.
: Rent or buy the movie in high definition (with official Hindi audio/subtitles) on Google Play Movies, Apple TV, or YouTube Movies for a nominal fee. Share public link Hangover 3 Hindi Dubbed Filmyzilla
If you don't want a subscription, YouTube Movies offers The Hangover Part 3 (Hindi Dubbed) for rental (approx ₹50-₹120 for 48 hours). Hangover 3 Hindi Dubbed Filmyzilla