How did Anurag Kashyap made Ranbir Kapoor cry?

Bollywood filmmaker Anurag Kashyap is very much in news now a days. The ace director is busy promoting his upcoming 60’s drama ‘Bombay Velvet’. The movie has an enviable cast of Ranbir Kapoor, Anushka Sharma and Karan Johar. Anurag Kashyap at one such event revealed an interesting anecdote. This was regarding the lead actor of his magnus opus.

Anurag Kashyap revealed how got Ranbir Kapoor to cry on screen for ‘Bombay Velvet’. He said that Ranbir Kapoor finds it very difficult to cry on screen, so to get him to cry he would get Ranbir drunk. Later after getting Ranbir Kapoor drunk, he used to have conversations with the actor which would help him cry for the camera.

What did Anurag Kashyap talk about with Ranbir, that made actor so sentimental that he could not stop his tears?