A woman, together with her former husband and boyfriend, punched and kicked her former lover and hit him with a foldable chair.

One of them even pulled down his pants and the woman took photos of him in a dispute over her three-year-old daughter, a district court heard.

Siti Norhaizah Abdullah, 31, was yesterday sentenced to six weeks' jail for causing hurt to Mr Muhammad Abdul Latip, 31, at the common corridor of a block in Bukit Batok West Avenue 4.

Her boyfriend, stall assistant Rahmat Jumari, 29, was given nine months' jail for causing grievous hurt to Mr Muhammad on Jan 27 last year.

He received the same sentence as Siti's former husband, driver Abdul Halil Osman, 32, who has since completed his jail term.

Siti and Rahmat, who plan to get married, deferred their sentence to April 21 to make care arrangements for her five children, aged three to 11.

The four older children are Mr Abdul Halil's, but the name of the father of the youngest one was not revealed in court.

Deputy Public Prosecutor Clement Yong said the two men went with Siti to Mr Muhammad's home at about 6.30am that day to help her take back her daughter, who had been living with the victim and his mother.

Siti knocked on the door and asked to see her daughter while the two men waited at the staircase landing. When Siti and Mr Muhammad started arguing, Mr Abdul Halil joined in the argument.

Shortly after, Rahmat punched Mr Muhammad on the back of his neck a few times.

When Mr Muhammad turned around, Mr Abdul Halil hit him three times on the back of the head with a chair. When he fell, Rahmat kicked him in his back.

Both men started to punch and kick him multiple times. When he tried to crawl away, Siti blocked him. Rahmat continued raining punches on the victim's face.

Mr Abdul Halil then passed the chair to Siti, who used it to hit the area around the victim's knee. She also kicked him a few times.

Rahmat then pulled down Mr Muhammad's pants and Siti took photos of him with a mobile phone.

Mr Muhammad's injuries included a fracture to his forehead.

Lawyer Gino Hardial Singh said in mitigation that Rahmat had been there to lend moral support to Siti, who was trying to take her daughter back from the victim, who had refused to return her.

He said it was essentially a family dispute that had escalated into an assault.

Rahmat could have been jailed for up to 10 years and also be liable to a fine or caning.

Siti could have been jailed for up to two years and/or fined up to $5,000 for causing hurt.