Three accused, identified as Laxman Ahirwar (28), Mohammad Azhar (24) and Chotu Patel (28) were today arrested for the incident that took place last night, police said.
"The woman hailing from Satna district in Madhya Pradesh and her male relative had boarded a wrong train at Nagpur in Maharashtra to return home," GRP Havaldar Darshan Singh said.
Before the train entered Itarsi station, the man accompanying the victim got down when it slowed down in the outer section, although the woman could not disembark with him, he said.
The victim lodged a complaint with GRP yesterday, following which the arrests were made.
Further investigation into the case is on, he said.