"The accused, Imran, along with 12 other Imam and Maulavi on Monday had visited the Delhi Chief Minister's Janta Darbar seeking an increase the salary of the Delhi Waqf Board staff," Deputy Commissioner of Police Nupur Prasad said.

"During frisking a security officer found a bullet in Imran's wallet. He was handed over to the police," Prasad said.

At his interrogation, Imran revealed that he lives in Seelampur and worked as a caretaker in the Bawli Wali mosque in Karol Bagh.

He told the police he had found the bullet in a donation box three months ago and kept it in his wallet. He intended to throw it away in the Yamuna waters but later forgot.

He has been booked under the Arms Act, the officer said.