Katrina is a modern day marvel, Big B

Megastar Amitabh Bachchan is full of praises for beautiful Katrina Kaif. She along with Ranbir Kapoor on Saturday appeared on Bigg Boss and spoke at length about their latest film, ‘Ajab Prem Ki Ghazab Kahani’. Amitabh is stunned to see how Katrina has grown up as an actress.

"Katrina is a modern day marvel. From a non-Hindi speaking young shy and uncertain lady of Boom, she has grown and grown to become one of the most desired actresses in our fraternity," Amitabh posted on his blog bigb.bigadda.com.

Amitabh had an interesting chat with the sizzling pair and even asked Katrina to speak in Hindi or otherwise she will be put behind bars according to Bigg Boss rule book.

"They (Ranbir and Katrina) were charming and involved and sweet. Ranbir as you all know is related to me. His cousin - Rishi Kapoor's elder sister's son is married to Shweta, my daughter.

"I wished them happiness and success," he said.