According to Shahabad Circle Officer Kajodmal, the girl was profusely bleeding after the incident and was rushed to Baran district hospital on Tuesday night.
The family of the girl alleged that the private school's manager, teachers and others had been raping her for one year.
A five-year-old girl was left bleeding after she was allegedly raped by three boys in a village in Rajasthan's Baran.
The police have registered a case against the three under Section 376-D, 3/4 and 5/6 of the POCSO (Protection of children from Sexual Offences) Act and Section - 67 of the IT Act.
The incident took place in a village under the Khanpur Police Station limits and the arrest was made on Friday.
Dhannaram allegedly barged into the house of the girl on Sunday night with a knife and attacked the family members.
Police officials say the complaint was lodged by the maternal uncle of the girl after she managed to flee the house and narrated the sordid tale.
"The rape and murder of the minor girl is highly condemnable and shameful. The person who committed this heinous crime will not be spared," Rajasthan CM Ashok Gehlot said.