A personnel each of the district police and the CRPF were injured, police said.
The encounter took place in Makadchua village in Potegaon in Gadchiroli taluka of the district this morning.
The deceased have been identified as Pardeshi Suka Devangan (42) of the district police and S C Kore and Yasmin Ahmed of the CRPF.
Vitthal War from C-60 battalion of district police and Chandana Nath from CRPF were injured. They were airlifted to district headquarters.
At least, 11 policemen were killed in an attack by Naxals in Chhattisgarh's Bijapur district yesterday.
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