About 29 girls of Rishi Aurobindo Balika Vidyalaya locked up the Principal and some teachers in the school since yesterday afternoon, upset over their exam results, police sources said.
At around 1:00 pm today, however, the teachers were allowed to go by the girl students after a representative from the Education Ministry promised a review.
"The students have let the teachers free on assurance from the Education Department that all the results of the failed students will be reviewed shortly," a police official said.