Fearing threats from Maoists after giving up arms, Dambaru was staying in the district headquarter town of Malkangiri and had been to his village to attend a function when the incident took place.
Maoists killed a former red rebel, who had surrendered before the police over two years ago, dubbing him as a police informer in Odisha's Malkangiri district, the police said today.
The deceased, identified as Dambaru Sagadia, was one of the two tribals who had been abducted by a group of armed ultras on Friday last from Mundaguda village under Mathili police station area, said Inspector incharge of Mathili police station, P K Mallick.
While the other tribal, Sina Madhi, had managed to escape from the captivity of the Maoists the next day, the body of Dambaru with injury marks was found in a forest near Kansariput this morning, he said.
Sina Madhi has stated that both of them had been badly beaten up by the Maoists after being abducted at gun point, the police said.
A poster recovered from the site stated that Dambaru was punished as he functioned as an informer of the police and assisted in anti-Maoist operations, Mr Mallick said.
A police team has been sent to the spot and combing operation intensified in the area after the incident, he said.
The police said Dambaru, who was earlier involved in Maoist activities, had surrendered before the police over two years ago giving up the path of violence.
Fearing threats from Maoists after giving up arms, Dambaru was staying in the district headquarter town of Malkangiri and had been to his village to attend a function when the incident took place, Mr Mallick added.