A Mumbai boy, 12, allegedly stabbed his tuition teacher to death after an altercation between his mother and the teacher.
The incident took place in Mumbai's Shivajinagar area on Monday evening, the police said.
The victim, a 30-year-old woman, used to take tuition of the boy at her house, police said.
On Monday, the boy's mother wanted some money as loan from the teacher. They had an argument after she refused, the official said.
Enraged with the argument, the boy allegedly stabbed his teacher.
She was taken to a hospital where she was declared dead.
The boy has been detained. Investigation is on.