The clash erupted when a jail guard found a mobile phone with one of the prisoners which he wanted to seize but the prisoners attacked him, he said.
More jail guards canecharged on them to bring normalcy in which two inmates Ahmed and Kishan were injured, the official said.
The injured inmates were referred to a government hospital in the city, the official said.
There were a number of incidents when jail authorities found mobile handsets with the inmates, and the mobiles were seized at that very moment, he said.