A customs officer was arrested late on Thursday night on the charge of raping a minor girl at his residence in Chennai's Choolaimedu area in February last year, the police said.
The arrest followed a complaint lodged by the victim, a class 12 student, they said.
A police officer said a child helpline received a call in February 2004 that a girl had been locked up at the officer's residence.
She was rescued and moved to a girls' home.
Medical reports received by the police on Thursday evening confirmed that the girl had been raped, leading to the officer's arrest. He was charged under IPC section 376.
The officer said efforts are on to get complaints lodged by three more girls from Vaniyambadi in Vellore district, who
were also reportedly sexually assaulted by the officer.