An offence has been registered against a teacher of a private school for allegedly beating up a 14-year-old student in Maharashtra's Thane district, police said on Friday.

Based on a complaint lodged by the Class 8 student's parents, the police have registered a case under section 323 (voluntarily causing hurt) of the Indian Penal Code and under Juvenile Justice Act and Right to Education Act, senior inspector Ghanshyam Adhav of the Vashind police station said.