Amar Singh Katiyar (52), principal of Nehru Vidyalaya Inter College in Arraul area of Bilhaur, locked himself in his room and committed suicide at his residence last night as he was worried about some college-related matters, police said.
His son, Balender Singh, has registered a case against three college staff for allegedly abetting his father's suicide, they said.
The body has been sent for the postmortem and further investigations are on, they said.