"Assistant forester Ghisa Ram was supervising the work. Some labourers saw a tiger attacking and then dragging him away," a police officer told IANS.
Police said the body of the 47-year-old officer was found at Kala Peela Pani hills around an hour later.
The labourers informed the park authorities, following which a team of district administration and forest department officers rushed there. By the time they arrived, the officer was dead, said the police officer.
The forest department has launched an inquiry into the incident.