Karan Johar's 'Koffee With Karan' has started with bang. After SRK and Alia, the next guest was Akshay with wife Twinkle.

And now Karan apart from concentrating on his show also trying to cast an awesome pair together in a film. If buzz are to be believed, then the hot ex couple Katrina Kaif and Salman Khan will show their bonding again in a film of Karan Johar.

Karan Johar is trying all his effort to cast them together as they are doing 'Tiger Zinda Hai' so hopefully Kat and Salman has no problem to appear together.

According to recent report, "Karan Johar earlier wanted to cast Aditya Roy Kapur opposite Katrina in the film but seems he has changed his mind and asked Salman Khan to do the film with Katrina."

Salman's approval is yet to gain. But we really want them together.

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