Tevez was absent from the City team for six months after an argument with Mancini erupted when the Argentina striker refused to come off the bench in the club's Champions League game at Bayern Munich.
Manager Roberto Mancini and Tevez have since agreed a truce and the Italian was pleased with the hat-trick scorer's efforts.
"Tevez scored three goals, and Aguero two. That is their job," Mancini said.
Mancini hauled Tevez off within moments of his third goal, which he celebrated by mimicking a golf swing.
"Carlos did not play for us for six months but it is only in the last month that we have come off the top of the league," Mancini added.
"Everyone makes mistakes. It's important that when you do them you apologise.