The suspected ultra, travelling in the same mini-bus, deboarded at Sangrama, 50 kms from here, at around 7 p m, a police spokesman said.
Soon after disembarking, he fired shots at the mini-bus from his pistol leaving four injured, the spokesman said.
A former Hizbul Mujahideen militant identifed as Abdul Khaliq, the bus conductor, a labourer from Bihar and another person were injured in the firing, he said.
They were rushed to hospital where their condition was stated to be stable, the spokesman said.