December 21 (SeeNews) - The main share indices of the Zagreb Stock Exchange (ZSE) rebounded on Tuesday in low turnover as gains in electrical equipment manufacturer Koncar Elektroindustrija [ZSE:KOEI] and consumer goods distributor Atlantic Grupa [ZSE:ATGR] counterbalanced losses in food and pharmaceuticals producer Podravka [ZSE:PODR], bourse data showed.