The police said they have arrested the teacher who was identified as Champa Mondal.
Mondal on May 15 allegedly smashed Bapi Joardar's head on the wall at Nirdheshkhali Shishu Shiksha Kendra at Basanti town in West Bengal's South 24 Parganas district for throwing bags in the classroom.
The victim was earlier admitted to a local hospital.
He was later brought to state-run SSKM Hospital in Kolkata. He died at around 5 am at the hospital, reports said.
--IBNS (Posted on 17-05-2013)