If you're genuinely interested in watching Bollywood movies on mobile devices in a compressed format legally, I'd be happy to guide you through:
Back then, owning a "multimedia phone" meant you could watch the latest Bollywood blockbusters on a 2-inch screen, compressed into a tiny file format called 3GP. 3gp mobile movies bollywood a to z
While several unofficial sites like MP4MobileMovies and HD MP4 Mania historically provided 3GP and MP4 content, they are often ad-heavy and carry security risks. If you're genuinely interested in watching Bollywood movies