Earlier reports said, quoting Chhattisgarh chief minister Raman Singh, that the death toll was nine.
The attackers reportedly seized almost a dozen weapons from those killed alongside two radio sets.
The patrol was on a road opening mission to secure a stretch of road running through dense forests.
The Maoists, widely known as the Naxalites or the Naxals, have been fighting the Indian government since the 1960s and currently operate in a number of central and eastern states, including Bihar, Chhattisgarh, Jharkhand and Odisha. The armed far-left groups conduct guerrilla warfare while hiding in some of India's densest forests, targeting security forces and government officials.
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