District Judge Mathew Joseph did not mince his words when he chided businessman Pillai Shyam Kumar Sadashivan, now 47, calling his actions "abhorrent and repugnant".
"The victim was a professional nurse looking after your sick wife... (not to) provide non-nursing services, contrary to what you expected. This is Singapore. We have different standards here," the Straits Times quoted the judge as saying.
Pillai, who runs a steel trading company in Dubai, initially claimed trial to his offences but decided to plead guilty on the first day of the hearing in August.
A second count of insulting the woman's modesty was taken into consideration during sentencing.
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Pillai had come to Singapore with his wife to seek medical treatment, according to the report.
He committed the offences on December 14 last year, just three days after the nurse started working there.
Other than the couple, no one else was present in the apartment.
In December, his wife was asleep in her bedroom with the door closed when Pillai invited the nurse to sit with him in the living room, where they had a conversation.
"The victim understood that the accused was referring to sexual contact and replied that she was a professional nurse and did not do such things."
"Pillai then asked the nurse to lift her top. He molested her after she declined."
The nurse continued to take care of Pillai's ailing wife and even returned to work the next day, as she was concerned about the sick woman's health. But she later alerted the police about her ordeal and stopped going to Pillai's home.
The prosecution had earlier asked Judge Joseph to sentence Pillai to seven months' jail with three strokes of the cane, stressing that the Indian national had disrespected his vulnerable victim.
Pillai is now out on SGD 15,000 bail and will surrender himself at the State Courts on October 16 to serve his sentence.
For molesting the nurse, he could have been jailed for up to two years and fined or caned. And for insulting her modesty, he could have been jailed for up to a year and fined, according to report.