On information that the ultra-left wing guerrillas had gathered near the village, about 80 km from Ranchi, the police rushed to the spot around 4 AM, Superintendent of Police Anup Birtheray said here.
In the ensuing encounter, CRPF Commandant R R Mishra, a CoBRA jawan and a district police man suffered injuries, and were admitted to a hospital, he said.
One Maoist was killed and the retreating rebels fled with the body, police added.