The incident occurred when Mohol MLA Ramesh Kadam was going to 'surrender' at the local police station, accompanied by over 3000 supporters, police said.
According to a police official, police had served summons on the MLA for allegedly removing a road divider on the Pune-Solapur Highway on June 28.
As Kadam's supporters walked shouting anti-police slogans, police attempted to stop them with barricades, but the activists started stoning police and the police station and also knocked down the barricades.
