Kashyap, who has worked with Nawazuddin in films like "Black Friday" and "Gangs of Wasseypur", opened up about his bond with the actor on UTV Stars show "Yeh Hai Meri Kahaani".
"Nawazuddin is a very good man. I love him a lot. With him, I share a silent relationship. We can even sit in a plane without talking for three hours straight," said Kashyap, who sometimes finds it hard to express himself.
"I have trouble expressing myself where it is essential to," he added on the show.
The episode featuring Kashyap will be on air Sunday.