The film is not just a comedy. The second half deals with guilt, sacrifice, and heartbreak. When Luv says, "Dil ki baat kehni mushkil ho gayi," the literal translation ("Speaking the heart's matter became difficult") loses nuance. Professional subtitles convert this to something like, "I can’t find the words to tell you how I feel," preserving the emotional weight.
Yes, the official T-Series DVD release of Mere Brother Ki Dulhan includes English subtitles. However, the DVD is now out of print in many regions. Your best bet is digital streaming. mere brother ki dulhan english subtitles
The most reliable way to watch the movie with clear, official English subtitles is through licensed subscription services: The film is not just a comedy