An undertrial prisioner was on Monday injured after being shot inside a court in Bihar's Muzaffarpur district.The prisoner was brought for a hearing in a case, police said."Some unidentified men shot and seriously injured an undertrial prisoner in the civil court in Muzaffarpur when he was brought to be produced in a case," a district police officer said.The injured prisoner was admitted in a government hospital for treatment."Police have began an investigation into the incident," the officer said.