"I think character in a man makes him what he is. Of course, we look for various things in a man but the one thing that makes a man stand distinctively apart from the rest is his character," she told reporters Sunday at the GQ Men of the Year Awards.
Dia, 30, is dating filmmaker Sahil Sangha.
Talking about the women in Bollywood, Dia believes it is filled with some wonderful women.
"I think we have many wonderful women in the Hindi film industry who are a combination of good looks and intelligence. To name a few, I would say Priyanka Chopra, Lara Dutta, Sushmita Sen, Deepika Padukone...The list is pretty endless actually," Dia said.