SINGAPORE - An electrician who followed a teenage commuter around and molested her was jailed for three weeks on Tuesday.

Indian national Ravi Raja, 33, repeatedly touched the 19-year-old girl's buttocks after boarding the same train on December 9, 2014.

Throughout the 15-minute journey from City Hall to Lavender station, Ravi stood behind the girl and followed her whenever she moved.

He pleaded guilty to one charge of molestation.

District Judge Salina Ishak said Ravi had touched the teen repeatedly in clear and deliberate acts.

For using criminal force to outrage a person's modesty, Ravi could have been jailed up to two years, caned, fined, or any combination of these punishments.