A: Yes, legally. If you rent or purchase the movie on YouTube, the YouTube app allows you to download it for offline viewing within the app on your phone or tablet.
It sounds like you’re looking for the page for the movie Main Prem Ki Diwani Hoon — likely searching for downloadable files, song lists, or scene breakdowns from the 2003 Bollywood film. Index Of Main Prem Ki Diwani Hoon
Finally, on a obscure forum dedicated to early 2000s Bollywood nostalgia, he found a link. It wasn't a streaming site. It was a raw directory listing on an open server—a digital dusty attic. A: Yes, legally