As a major Tamil entertainment platform, Sun NXT holds rights to many Seenu Ramasamy films. A subscription costs around ₹200-₹400 per month, and you can watch Neerparavai along with hundreds of other Tamil classics.
Thus, even if you believe you are safely downloading Neerparavai from a "new" Isaimini link, you are still participating in illegal activity. Neerparavai Movie Isaimini
Isaimini is not a legitimate streaming service. It is ad-infested, often displaying: As a major Tamil entertainment platform, Sun NXT