Participating in the World Police and Fire Games in Quebec, Arjun beat the 20-year-old 100 m butterfly Indian best set by Khazan Singh, clocking 56.74 seconds to wipe out Singh's 1985 record of 56.84 [REF].
In 2005 Open National Championships Arjun became the first Indian swimmer to break the 28-second barrier in the 50 m backstroke clocking a national record time of 27.97 [REF].