SINGAPORE - A highly intoxicated man came out of his van and slashed a youth on his arm after one of the victim's friends hit the side of the vehicle over the way he had driven in an open space carpark driveway on New Year's Day.

Kugan Kesavan, 27, who works as a driver, was jailed nine months on Friday (July 15) for hurting student Jonathan Soo Wen Jie, 17, with a knife at the carpark in front of Club Gossip at St James Power Station, Sentosa Gateway, at about 6am on Jan 1 this year.

He was fined $2,000 - or one week's jail - and banned from driving for 12 months for having no less than 134 mg of ethanol per 100ml of blood that day. The legal limit is 80mg.

A district court heard that Jonathan and his friends were leaving St James Power Station after a night out when they saw an oncoming white van, being driven recklessly by Kugan, as they were crossing the carpark driveway. One of them then hit the side of the vehicle.

Kugan stepped out of the van immediately with a knife in his hand.

At the time, Jonathan was standing close to the driver's door.

Kugan shouted in Tamil before raising his hand to slash Jonathan twice on his left forearm and once on his elbow.

He then pointed his knife at the victim's friends before returning to his van.

Several policemen who were on foot patrol heard some people shouting: "He has a knife!''. They went to the scene and Kugan was subdued.

Jonathan was taken to hospital for cuts on his forearm and elbow. He was discharged on Jan 4.

Kugan's blood was analysed and found to contain 134mg ethanol/100ml of blood.

Separately, he was convicted in January this year and jailed three months for causing hurt to a public servant.

His lawyer Amarick Gill said his client understands the severity of his offence of causing hurt with a dangerous weapon. He said Kugan's wife, who was in court, has to take care of their three children, including six-month-old twin girls. He said she had severely chastised Kugan.

Kugan, who did not pay the fine, could have been jailed for up to seven years, fined, caned or received any combined punishment for causing hurt with a dangerous weapon.

The maximum punishment for drink driving is a $5,000 fine and six months' jail, plus a minimum 12-month disqualification.

Correction note: An earlier version of the story stated that the fine amount was $1,000. The Court has clarified that it is $2,000.