A teacher in Maduravoyal in Tamil Nadu suffered an ear injury after a 12th-grade student slapped her hard.
Annoyed at being scolded for deliberately switching off the main power in the classroom, the student lunged at his teacher and slapped her.
The teacher, who was advised to undergo minor surgery to set the eardrum right, lodged a police complaint.
Despite past similar behaviour, the student was allowed to continue his studies after his parents gave a written apology to the principal.
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