The girl was a student of a college at Pachora town in Jalgaon, they said.
The incident took place on August 17 when the girl consumed rat poison as she was fed up with the humiliation faced due to eve-teasing, an official at Pachora police station said.
The victim's alleged stalker, identified as Sharad Patil (25), was arrested on the same day, police said.
The accused used to allegedly stalk her wherever she went and eve-teased her, the officer said.