The Delhi Police has registered an FIR on a complaint by Nupur Sharma in which the suspended BJP spokesperson alleged that she is receiving death threats after her remarks on Prophet Mohammad, officials said on Monday. "Based on the FIR, we have initiated a probe into the matter," a senior police official said. According to the officials, the FIR has been registered under IPC sections 153 A (promoting enmity between different groups on grounds of religion, race, place of birth, residence), 506 (criminal intimidation), 507 (criminal intimidation by an anonymous communication) and 509 (word, gesture or act intended to insult the modesty of a woman) against the unknown people.