"I had always yearned to do such hardcore criminal's roles other than suave serial killers," said Kahaani's Bob Biswas
"I did not have to think much doing Bob Biswas in Kahaani. Here in 89, he is far more dark and you can't read his mind," Mr Chatterjee said
Superstar Prosenjit Chatterjee recalls how captivated he was as a child while watching Satyajit Ray's films on children.