India, June 9 -- Bollywood star Aamir Khan, 60, is all set to share screen space with Genelia D'Souza, 37, in their upcoming film Sitaare Zameen Par. Interestingly, it was Aamir who introduced Genelia to Bollywood opposite his nephew Imran Khan in Jaane Tu. Ya Jaane Na. Now, the actor has opened up about romancing her on screen despite their 23-year age gap, in an interview with The Indian Express. (Also Read: Genelia D'Souza recalls being discouraged from making comeback to films after 10 years: 'I was told it won't work')

When asked if he was ever concerned about the age difference between himself and Genelia, Aamir said, "Ya, I know. But that was a long time ago. And ab Imran bhi kaafi meri age ka ho gaya hai (laughs). That thought di...