In the wake of Uri attack, last week MNS threatened Pakistani artistes like Fawad Khan and Mahira Khan to leave India, saying otherwise the shooting of their films would be stalled.
They also demanded a ban on Pakistani artists working in the Indian film industry.
The "Raman Raghav 2.0" helmer, who previously collaborated with Johar on films like "Bombay Velvet" and "Shaandaar", said he wants to know the "next five steps" which will be taken if the Pakistani actors are banned from Bollywood.
"What problems will be solved after sending him? What will be your next step after sending him. At least tell us what are your next five steps," Kashyap told reporters here when asked to comment on the issue.
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The filmmaker was speaking at a special 'in conversation with' event at the ongoing 7th edition of Jagran Film Festival.
Recently Johar had said that though he understands the anger among people due to the aftermath of the attack, he did not see the idea of banning actors from Pakistan as a solution to terrorism.
"But this is not a solution. I don't believe it is. The larger forces have to come together and sort the situation and this cannot be banning talent or art," Johar had said.