Priyanka launched the book - The Age of Sinnocence and Cinema - at the event and spoke about the evolution of Indian Cinema and how it had shaped the youth culture of the country over the years.
The 28-year-old former Miss World (2000) wore a cut out sleeve tunic with jeans that had bold seam detailing.
She accessorized with black peep-toe booties and an adorable owl pendant.
In a welcome change from the norm, her hair was styled with a middle parting and loose bottom waves.
She wore berry lipstick, bold peach rouge and smoky eye makeup. She rounded her looks with berry nail polish.
Overall, her vibrant look went well with the youth event.
While everyone has been focusing on Katrina Kaif, Sonakshi Sinha and Deepika Padukone, its Priyanka Chopra who is getting hotter by the day, we think!
"Nudity is something that I wouldn't be comfortable with. Even if I play the most complex and weird parts which are raunchy or whatever it has to be, the portrayal of a character is to a point where it is aesthetically done. It has to be something that I won't be averse to showing my parents. I have to be able to sit with them and watch it."
As for her on-screen lesbian kiss, the pre-requisite is the girl has to be hot, she said.
Gosh! We aren't going to sleep well tonight visualizing that!
Priyanka is currently filming for Agneepath with co-star Hrithik Roshan.
She is simultaneously filming for Barfree with co-star Ranbir Kapoor.
She is on board to reprise her role in Krrish sequel with co-star Hrithik Roshan. Filming is scheduled for 2011 end.
Her fans have to be patient as she will be next seen in Don 2, which isn't due for release till December 23. In the film, she returns as Roma.