The girl, class VIII student at a private school in Banaganapalli mandal, died at the hospital last night, they said.
"The girl set herself ablaze on October 21 and was initially admitted to a government hospital and later to a private hospital. Her father lodged a complaint with police alleging that Abdullah, one of her teachers, sexually abused her, and due to which she resorted to the extreme step," Banaganapalli police station Inspector Srinivas told PTI over phone.
A case was registered under relevant sections of the IPC and the accused has been detained, he said. Further probe is on.