A joint squad of Border Security Force (BSF) and state police caught them yesterday from a local market in Balimela near Koraput.
The action was based on intelligence inputs about the movement of these people, a senior official said.
The Maoists have been identified as Ghasi Badanayak (26), Samara Mahi (30), Shib Majhi (37) and Gadu Shisha (30) all residents of village Anagel under police station Mudlipada in the district.