The incident took place in Kulhauli village of Bidhnu area when the 16-year-old girl sweet-talked the boy from her neighbourhood into his house and tried to have sex with him.
In the attempt, the boy sustained serious injuries in his private parts and started to bleed.
While the boy is undergoing treatment at the Hallet hospital in Kanpur, police said they were at their wits end to come to terms with the incident and decide under which sections of the IPC lodge a case.
Both the victim and the aggressor are minors, in this case and as a result loding complaint is becoming difficlt, SSP Kanpur Shalabh Mathur confirmed.
Legal experts said a case can be lodged under the section 8 of the Protection of Children from Sexual Offences (POCSO) Act.