Some of the trainees allegedly went on a rampage damaging the Police Training School complex at Manigam last night after they were informed at roll call that they will be deployed for security duty for the Amarnath Yatra, scheduled to begin from June 28, the sources said.
The trainees broke some window panes of the buildings in the complex, they said.
Senior police officers of the district rushed to the spot and pacified the agitating trainees, they said.
"They were agitating over the delay in conduct of their passing-out parade as they have completed their training some time back," the spokesman said.
He said the matter has been dealt with.
Most of the trainees were recruited during on-the-spot recruitment drive launched by the police department in Srinagar city and adjoining areas after the summer unrest of 2010.