According to the police complaint lodged by the victim on Sunday, she was sexually assaulted by Santosh Pawar (23) on Valentine’s Day, which also happened to be her birthday.
Both the girl and the accused used to attend coaching classes together in Khadegolavali of Kalyan following which they became close friends, APSI V K Hirey of Kolshewadi Police Station said.
After her birthday celebrations, the girl was allegedly raped by Santosh on the terrace of the coaching class building.
Based on the complaint, police have registered an offence under section 376 of the IPC and Protection of Children from Sexual Offences Act of 2012.
The duo lived in the same locality.