Mouni Roy gained immense popularity for her portrayal of Sati in the mythological show Devon Ke Dev Mahadev. Mouni's graceful presence made her portrayal of Sati unforgettable.
Mouni Roy's portrayal of a shape-shifting serpent in the supernatural drama series Naagin was a massive hit. Her stunning performance as a vengeful icchadhari naagin left the audience in awe.
In Made in China, Mouni Roy played the role of Rukmini Mehta, the supportive wife of a struggling businessman.
Mouni Roy's portrayal of Monobina Das, a supportive wife and a strong female character, in the sports drama film Gold was widely appreciated.
Mouni Roy showcased her talent as the villain in Brahmastra. Her performance as Junoon received critical acclaim.