Bollywood actor public appearances in New York City???

I am looking to send my parents to see Bollywood actors in New York City for their birthday in September. Specific actors: Amir Khan, Rani Mukherji, Sharukh Khan, etc.

It does not necessarily have to be in September.

Specific dates, time, and locations would be helpful. Also, where do I go to find out public appearance schedules??? I can't find any websites that have a schedule (like ticketmaster).

Thanks!!!

well i dont exacly know what time and you could go see them but i do know that all of them are shooting in this movie called dhoom 3 and you know i actuly met rani muckerji when i was on a plane to india.