An unidentified man was arrested on Monday for trying to enter Karnataka Chief Minister S Siddaramaiah's residential office with a dagger, said a report.

He was lingering on the premises of the CM's office 'Cauvery', as the latter was preparing to leave for New Delhi, reported Mail Today.

The man, who is undergoing interrogation at the High Grounds police station, told the police that he came to submit a memorandum. 

However, while frisking, the police found the dagger he was carrying and detained him.