In a show of strength, the opposition Maha Vikas Aghadi (MVA) constituents in Maharashtra took out a 'Halla Bol' protest march in Mumbai on Saturday against the Eknath Shinde-BJP government in the state, and emphatically demanded removal of Governor B S Koshyari for passing "insulting" remarks against iconic personalities, including Chhatrapati Shivaji Maharaj.