SINGAPORE - Mr Kelvin Ong never graduated from the National University of Singapore (NUS) as a double mathematics major.
In fact, he never attended the university, The Sunday Times reported.
Last month the Education Ministry revealed that Mr Ong was neither a pupil nor teacher in the Gifted Education Programme.
He then claimed that it was his mother who told him that he was from the gifted programme and he could not verify it because he does not have the records from the past.
He went on to add that he was a relief teacher at Anglo-Chinese School's (Primary) from 2002 to 2003 and "helped out" with the gifted classes.
This claim was then disputed by the school. ACS primary added that a check with all its long-serving teachers revealed that there was never a Kelvin Ong who taught there as a relief teacher.
The Sunday Times revealed that Mr Ong had actually graduated from Nanyang Polytechnic with a diploma in 2000.
He then worked as a physiotherapist at National University Hospital (NUH) before being asked to leave in 2004 over "integrity" issues. It was during this time when he was working at NUH that he had claimed he had
been a relief teacher in ACS primary.
The paper also reported that people who knew him said that he was always trying to make money, including through tuition.
He then set up Aristocare tuition centre that charged parents up to $500 per pupil for a 3-hour session.
He justified his high fees with his claims of not only having been through the gifted programme but having taught in the programme for 10 years in ACS primary.
Meanwhile, some parents have demanded refunds for the fees that they have paid him.
Mr Ong also told the paper that he has closed down the tuition centre and that he won't be teaching any more. He declined to comment on other matters, The Sunday Times reported.