To enjoy the film in the best possible quality (4K/HD) with proper subtitles and Auro 3D or 5.1 surround sound, you can find Vishwaroopam on official streaming platforms.
If you want to watch Vishwaroopam (and its sequel, Vishwaroopam 2 ), you do not need to risk a malware infection or legal notice. Here are the legal platforms:
Frequently streams the multi-language versions of Kamal Haasan's library.