The school management took action against her after local police registered a case against her based on a complaint by the parent of the 13-year-old boy.
The teacher cut the hair of the boy, studying in Class VIII, during the physical education class holding that growing long hair was against the school code.
The boy's father had lodged the complaint yesterday.
Though it was said that more students had been victims of her 'hair-cutting act', only one parent had come up with the complaint, police said.
Following the incident, several youth outfits also demanded action against the teacher.