The injured prisoners were taken to hospital.
The two, Sk Rajesh and Vicky Majumder, were arrested in a narcotics case three years ago.
The motive behind the attack was being investigated, the sources said.
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The injured prisoners were taken to hospital.
The two, Sk Rajesh and Vicky Majumder, were arrested in a narcotics case three years ago.
The motive behind the attack was being investigated, the sources said.
First Published: Sep 25 2012 | 6:45 PM IST