 After retiring as a player in 1974 Gunalan served in various stints as coach of the Malaysian team, an official in the Malaysian Badminton Association and as an official in the International Badminton Federation (now Badminton World Federation).In 1992, as team manager of the Thomas Cup together with Badminton Association of Malaysia (BAM) president Tan Sri Elyas Omar, Malaysia won the Thomas Cup beating Indonesian.