A 23-year-old cleaner from Sarawak was on Friday jailed 33 years and ordered to be caned 24 strokes for his role in the horrific Kallang slashings in 2010.

Hairee Anak Landak, who was 19 at the time, pleaded guilty to three charges of armed robbery with hurt.

He was initially charged with murder along with countrymen Michael Garing, 24, and Tony Imba, 34. They are among seven men arrested for the spate of violent robberies in Kallang and Sims Drive.

Hairee took part in a robbery spree of two hours between late night May 29 and early morning May 30. He was not armed but punched and kicked the victims.

Indian construction worker Shanmuganathan Dillidurai was killed and Indian construction worker Sandeep Singh and fulltime national serviceman Ang Jun Heng seriously hurt. In sentencing, Justice Tay Yong Kwang pointed to the "extremely vicious" nature of the attacks. The murder trials of the other two men are pending.

The others received jail terms of two and six years and six and 12 strokes of the cane.