Sugreev Kumar, 12, a student of Sanjay Gandhi Public School (SGPS), was found hanging in the basement of a commercial establishment, a few metres away from his house in the Hayat Nagar locality.
Kumar's family members alleged that he was quite upset after he was scolded by his school officials for not depositing the fees on time.
According to police, in presence of other students, a teacher Friday wrote a remark in Kumar’s school diary that made him feel embarrassed.
“Today the boy left home as usual for school, but went to the commercial establishment and committed suicide," police inspector Abishek Sirohi told reporters here.
“We have initiated an enquiry against the school authorities and stern action would be taken against all those who prompted the student to take the extreme step," he added.