On 7 March 2003, Chelliah filed a MYR 5 million negligence suit against the companies involved in the design, installation and operation of the trains, as well as the Director-General of Railways. On 8 April 2003, the High Court ruled that the Monorail company was liable for the incident, but not the Director-General of Railways. Although the monorail company reported that any such accident was "unlikely" as six bolts would have to be removed for it to occur and furthermore, a check of all 23 other safety wheels on the train involved did not turn up any other issues, the high court judgement ruled that the monorail company "failed to provide a reasonable explanation as to how the safety wheel had come off the train and instead relied on the possibility that there had been tampering by unknown persons".
