Sonu Verma, accused in a 2009 case, was presented before special judge Jayant Kumar yesterday when the undertrial tossed one of his slippers, which hit a fan, they said.
He was overpowered by police personnel shortly after.
When the judge demanded a reason from Verma for his unruly behaviour, he asked for being pardoned.
The judge then imposed Rs 200 as fine on Verma, failing which he would serve a one-month prison term, they added.