Mouni took to Instagram to share a number of pictures from South Beach in Miami.
In the pictures, the actor is seen in a multicoloured bikini as she poses in front of the sea.
"Hello Miami," she says.
On the work front, Mouni was last seen in the massively popular film Brahmastra, which was directed by Ayan Mukerji.
Currently, Mouni is one of the judges in the 12th edition of Bengali dance reality show, Dance Bangla Dance.