The victim was Kabir Hossain, class XII student of Tangail Residential Cadet Academy and son of Kamal Hossain, hailing from Nandail upazila of Mymensingh district.
Aktara Begum, mother of the victim said: “Shohidul, a class teacher of the academy beat up Kabir, a residential student of the academy, brutally over a trifling matter yesterday night, leaving him critically injured.
Later, other students of the hostel admitted him to a local hospital.
She also said that he had filed a case with Ashulia police station accusing the teacher as the academy authorities refused to solve the problem.
However, Selina Ahmed, Assistant Head Master of the academy said: “We formed a probe committee to investigate the incident and we will take proper action after getting investigation report from the committee.”
Mohsinul Kadir, Officer-in charge of Ashulia police station confirmed the incident.