July 23 (SeeNews) - The main equity indices of the Zagreb Stock Exchange (ZSE) rebounded on Tuesday on gains in Podravka [ZSE:PODR], Valamar Riviera [ZSE:RIVP], Zagrebacka Banka (ZABA) [ZSE:ZABA] and electrical concern Koncar [ZSE:KOEI], bourse data showed.