 Zairul was given the number 24 shirt at Kelantan and since his return, Zairul always be in the starting line team and became the backbone of the team.He helped Kelantan won third place in the 2007–08 Malaysia Premier League.Zairul scored the winning goal during 2013 Malaysia Super League opening campaign with a 2-1 victory over PKNS at the Sultan Muhammad IV Stadium.