Police arrested two Maoists with arms and ammunition in the red corridor of Jamui district in Bihar on Sunday.
Acting on a tip-off, Police launched a joint operation with India's paramilitary Central reserved Police force (CRPF) which continued for about an hour.
Two red rebels were arrested while others fled amid exchange of fire.
Superintendent of Police, Upendra Kumar Singh, said that along with the arrest of two rebels, arms were also recovered.
"The team has cordoned the whole area and the first round of firing was started by the Maoists. It was followed by a heavy exchange of fire from both sides. In the meantime we arrested two and rest managed to escape. We have recovered rifles and bullets," Singh said.