If you are watching through other players and need to download a separate subtitle file (SRT), reputable databases like Subdl or English-Subtitles.org typically host multi-language files for major Bollywood releases.
: English subtitles are easily available. You can find .srt files on subtitle sites like Subscene , OpenSubtitles , or YIFY Subtitles . Search for "Mere Brother Ki Dulhan 2011 English subtitles".