Rajkumar Mahto, a Class 12th student of Navodaya Vidyalaya, hanged himself from a tree and committed suicide in the school premises yesterday, they said.
A suicide note has been recovered in which Mahto has accused the Station House Officer (SHO) of the area, School Principal and a teacher for him taking the extreme step, officials said.
Agitated over the incident, the students locked the school gate demanding suspension of the policeman.