The Internet Archive has a vast collection of movies, including Bollywood films like "Mere Brother Ki Dulhan". The film is available on the IA website, where users can stream or download it for free. However, it's essential to note that the availability of copyrighted content on the IA may vary depending on the region and the copyright laws in place.
The Archive is not a torrent site. It operates under fair use and preservation exceptions. However, it does host a gray area of "orphaned works"—films whose distributors have changed hands (from Yash Raj Films to Amazon to unknown subsidiaries) to the point where no one actively monetizes the digital version anymore.