The incident took place when the man was returning home after taking a bath in a pond yesterday.
"Niranjan Jena was critically injured in the attack and was hospitalised. The forest department is bearing the cost of his treatment. Besides, ex-gratia will be paid to his family," Divisional Forest Officer Bimal Prasana Acharya said.
"The area where the incident happened is close to mangrove forests and animals often stray into the village," Acharya said.
"The animal might have sneaked into the village to eat crops and vegetable plants as the village is located close to the forest area and wildlife corridors," he said.