Sites offering "download links" or "installers" for movies are never safe. They often ask you to disable your antivirus or download a video player that is actually a Trojan horse. Once installed, hackers can access your camera, files, and saved passwords.
Once you have installed the Amazon Prime Video app from the official Google Play Store or Apple App Store, and have an active subscription, you can follow these steps to "install" the movie to your device: tumbbad tamil dubbed full movie install