According to Superintendent of Police, Katihar, Siddharth Mohan Jain, SHO of Sudhani police station Rakesh Raman was injured when ASI Zakir Hussain opened fire at him.
Raman received the gunshot in his arm and was rushed to a hospital for treatment where his condition was stated to be stable, the SP said.
He said Hussain, who fled after the attack, was suspended recently following a public agitation in December last year wherein locals had accused him of having wrongfully detained one person.
A search was on to nab Hussain, Jain added.