The attack took place near Khaira, about 200 km from here, when the security personnel were on a routine patrol. The injured were admitted to a government hospital.
Maoists also attacked and damaged a Central Reserve Police Force (CRPF) camp under construction in the district and opened fire at a vehicle of a private mobile tower company.
According to police officials, the attack may be linked to the killing of Maoists in neighbouring Odisha.
A police officer said: "In the last two months, Maoists have attacked in over half a dozen places across the state and killed nearly a dozen people including policemen."
--IANS (Posted on 20-09-2013)