Watch: Man attacked after he tells car dealer to move BMW
Gasping for breath, he tried to break free from his attacker, who held his neck in an armlock.
But he could not get away.
In the end, three of his colleagues had to step in to separate them.
Mr Louis Zhan, 32, a sales executive at automobile dealer Speedo Motoring at Commonwealth Car Mall, said that the scuffle broke out after he told his attacker to move his BMW.
The car was blocking Mr Zhan from parking.
According to Mr Zhan, the BMW was also parked outside its stipulated area.
Recalling the attack which took place on Friday afternoon, Mr Zhan said yesterday: "I almost fainted when he choked me. I couldn't breathe. I thought he wanted me to die."
Mr Zhan, who is 1.71m tall and weighs about 65kg, added that his attacker, whom he identified as the boss of a neighbouring company, is much bigger than he is.
"He is very muscular - more than 1.8m tall and weighs about 90kg. There was no way I could fight him off," he said.
The alleged attacker could not be reached for comment.
The attack was caught on camera and a clip of the incident, which ran for nearly three minutes, was uploaded on citizen journalism website Stomp.
It showed a man walking briskly towards Mr Zhan before choking him in an armlock.
Mr Zhan could be seen struggling to break free as he was dragged off the road to the right and then off-screen to the left.
Seconds later, three people came rushing forward towards the pair.
Responding to queries from TNP, the police said that they were alerted to the incident at about 2.30pm on Friday.
A police spokesman added that investigations are ongoing.
Mr Richard Lim, 42, the managing director of Speedo Motoring, told TNP that the car dealers at the mall have to park their vehicles within the yellow lines painted on the road.
On the day of the incident, he said that the boss of the neighbouring company had parked his personal car, a dark blue BMW, outside the yellow line, and this created an obstruction.
Commenting on the attack, he said: "As business owners, we shouldn't act this way. If he's not happy, he could have talked to me. This type of behaviour cannot be condoned."
Mr Zhan, a father of two, has been working at Speedo Motoring for about seven months.
He added: "The boss (of the neighbouring company) tends to park his personal car outside the yellow line a few times a week. This blocks the one-way lane, making it difficult for us to drive our vehicles into our lot.
"Sometimes, we just ignore it. But when the car blocks our way, we will ask him to move it and one of his staff will come and drive it away. I asked him to move his car on Friday (but) I don't know why he attacked me."
He also claimed that he did not use harsh words on the man before the attack.
Mr Zhan said that after his colleagues went to his rescue, the attacker returned to his office.
He said: "I felt faint and went back to my own office. One of my co-workers called the police and the officers came down minutes later. I was in shock.
"I've worked in this industry for about six years and something like this has never happened to me before."
A friend later drove him to the National University Hospital as he had injuries including a sore neck, redness on his forehead and bruises on his left arm. He was given two days of medical leave.
The New Paper went to the alleged attacker's company yesterday, but his subordinates said he was not in.
They also said that they were unaware of Friday's incident.
"We will just try to avoid him in the future," said Mr Zhan.