Dhulia's unique challenge to Irrfan before signing him

Tishu challenged the actor to a game of chess and only after he beat him hands down, did he let him sign the dotted lines.

A source says, "For the sequel of Saheb, Biwi aur Gangster, everyone thought that since Irrfan is Tishu's good friend, getting in would be a cakewalk for Irrfan. But the director came up with this unique test."

Irrfan finally beat Tishu in the game and came on board for the film.

The source adds, "It was only later Tigmanshu explained to Irrfan that since his character plays mind games in the film, he wanted to see him in action in real-life too."