Though terrorists have threatened the Khans and demanded that they quit Bollywood, the stars are going about their work.

Salman Khan [ Images ] is shooting for Subhash Ghai's [ Images ] Yuvraj, while Shah Rukh Khan [ Images ] is shooting for Aditya Chopra's [ Images ] Rab Ne Bana Di Jodi.

Aamir Khan [ Images ] told the media that he does not care about terrorist threats. "I am not scared of any threats; these kinds of threats have come to me earlier too," he said at a book release.

He added that he will not be cowed down by terrorist groups.

In an e-mail threat, a terrorist group calling itself the Indian Mujahideen [ Images ] had demanded that Muslim actors should not act in movies because it is un-Islamic and warned that if they did, they would face dire consequences.

The mail was sent minutes before 16 blasts rocked Ahmedabad, killing nearly 50 people.

The Mumbai [ Images ] police reviewed the security of the top actors and asked their security personnel to be on the alert.

Aamir, who is working on his new film Ghajini [ Images ], said, "I have my own security and I don't need anymore."

Another Khan, the very talented Irrfan, also lashed out at the terrorists: "Let these people come out of their hiding and say whatever they want to. Their acts are barbaric. I need to see them, who they are, to react to their threat," he said.