Recently facing much flak regarding her appearance, Vidya Balan has now reportedly become even more cautious with her looks on-screen.

Vidya is just back from a month-long trip from New York where she had gone for a fund-raiser and is now all set to shoot for Pa with Amitabh Bachchan and Abhishek Bachchan .

’Pa’ would have Vidya opposite Abhishek while Big B’s character won’t have any female co-star.

And after the debacle of Kismat Konnection at the