The victim of the brazen Aljunied Crescent robbery is still traumatised by what happened, more than a year on. The 37-year-old money changer, Mr Ali Yousouf Saiboo, was punched, kicked and robbed of about $624,000 in cash by five men wearing ski masks in the open-air carpark of Block 110 just before 1am on Nov 5, 2014.

Yesterday, he said the incident has been at the back of his mind since.

"I often think about it, I still feel sad and angry," said Mr Saiboo, a Singapore permanent resident from India. "It's not a small amount of money, and I'm angry those guys would do something like that. Physically, I took three days to recover from the injuries, but mentally, I'm still affected. The police have done a wonderful job, but it's unfortunate that not all have been caught."

Mr Saiboo had taken his son, now four, along with him when he went to Changi Airport to collect foreign currency.

"Luckily my son's okay and I don't think he remembers the incident," he added.

Yesterday, Singapore permanent resident Annadurai Raman, 43, and Malaysian Tachana Moorthy Peromal, 29, were sentenced to jail and caning for abetment by conspiracy with six others to rob Mr Saiboo. Another accomplice, Ravi Sandhira Sagaran, 28, a Malaysian, was earlier sentenced to jail and caning.

But the others, all Malaysians, are at large.

None of the stolen money has been returned.

Now Mr Saiboo hires a security firm to transport cash to his money changing outlet at The Arcade in Raffles Place. "I'm a lot more careful now," he said. "It is definitely more expensive to hire security officers, but it's safer."