The 39-year-old "Murder" star and Cannes regular wore a pink Alexis Mabille gown to the gala. Mallika shared a few pictures of hers from the event.
"On my way to the @UNICEF dinner, thank you #ALEXISMABILLE for the lovely gown, makeup by @Dior, hair by @dessange," she captioned a photo of herself sitting in her car.
The actress' film "Time Raiders" was screened at the festival. Earlier, Mallika took to the Cannes red carpet in a Georges Hobeika silver gown at the screening of the film "The BFG".