Riya Sen is an Indian actress and model who predominantly appears in Hindi, Bengali, English, Telugu, Tamil and Malayalam films.

Qayamat: City Under Threat is an Indian Hindi-language action thriller film directed by Harry Baweja. Starring Ajay Devgn, Suniel Shetty, Sanjay Kapoor, Arbaaz Khan, Isha Koppikar, Riya Sen, Neha Dhupia and Aashish Chaudhary, it is a remake of the 1996 American film The Rock. It was the first Indian film to be digitally colour corrected. The film was shot in Australia, Mauritius and Diu. It also marks the second collaboration between Devgn, Shetty and Baweja after Dilwale.