Acting on a complaint lodged by the minister's aide Shashi Ranjan, Gupteshwar Prasad Singh alias Mukesh was arrested from Malshahi Nawada village in the district, police said.
The minister's cavalcade was attacked on April 20 by Singh and his supporters.
Meanwhile, irate locals gheraoed the police station for several hours demanding Singh's immediate release but were later pacified by the police officials.
