The woman had lodged a complaint with Gamdevi police station in south Mumbai that she was receiving obscene messages from an unknown person on her cell phone.
Police tracked down the mobile number from where the messages originated and arrested yesterday arrested the accused, identified as Kumar Karan, and brought him here today.
He was booked under section 509 (word, gesture or act intended to insult the modesty of a woman) of the IPC and also under the Information Technology Act.