The Slumdog Millionaire star attended the Girl Summit, the first global conference dedicated to eradicating Fgm and child marriage, two issues which plague African and Asian countries.
Pinto spoke to representatives from 50 nations in her role as ambassador for Plan International, a children's rights charity.
During the conference she said, "Every 10 seconds, one girl has been cut. No religion or culture can be used to help cushion or justify these acts. They need to go. I often think of the fear a girl faces when she is taken to the forest, pinned down and cut. I think of the fear a girl feels when she is told the man she is to marry is a little older than her father."