An unidentified man threatened to hit Congress leader Janardan Dwivedi with a shoe at a press conference here on Monday.
The man, allegedly named Sunil Kumar, was present here as a reporter. He was later caught by congressmen. "The attack was pre-planned", said Mr Dwivedi.
Dwivedi was addressing the media on the crackdown on yoga guru Baba Ramdev at the Congress headquarters here.