While 9xmovies is a well-known site for downloading movies, it is a pirated platform that is not legal and may expose your device to security risks. Instead of using pirated sites, you can access a vast library of high-quality Bengali content through official and legal streaming services. Top Legal Platforms for Bengali Content
9xmovies operates as a piracy hub. It does not have an official app on the Google Play Store or Apple App Store. Therefore, any "installation" process involves sideloading unverified software. 9xmovies bengali movies install
If you want legal alternatives to watch Bengali movies, I can: While 9xmovies is a well-known site for downloading