High definition; balanced quality and size (~700MB–1.2GB).
The following services are authorized to distribute Bollywood content in HD (480p to 1080p and beyond) and often include offline download features in their mobile apps.
A high-energy action film from Rohit Shetty’s cop universe.
If you meant downloading or your own legally purchased copies for personal backup, that's different—but file-sharing copyrighted content is not okay.