Tamil veteran Rajnikant was so impressed with Amitabh Bachchan's performance in "Paa" that he has confessed to the Bollywood megastar that he has set very high standards for actors by playing a 12-year-old progeria patient convincingly in the movie.

"Had a surprise visitor in Rajnikant in my room at the Fariyas (resort, Lonavala). He is shooting for 'Robot' with Aishwarya (Rai) in and around Lonavala and dropped in for a chat, " Amitabh posted on his blog www.bigb.bigadda.com/blog early Sunday morning.

"He had seen 'Paa'. I had organised it for him to see it at a private theatre in Chennai and he was meeting me for the first time after that. He had wanted to speak immediately after the film got over, but somehow we missed each other, " he added.

"Paa" that had been warmly accepted both by critics and audiences alike left its impact on the southern superstar too.

"Rajni was exuberant this morning. And we spoke for more than an hour about 'Paa'. He said we are all upset after seeing the film, not so much because of the content and its emotional quotient, but because now that 'you have done this, what are we going to do', " wrote the 67-year-old.