Bablu, the child, was mauled and killed by the tiger near Bherihadi village in the Valmiki National Park, the state's only Tiger Project, located over 250 km from here.
"He was attacked when playing near his village," the official added.
The tiger attack has created panic among villagers and para-military personnel who often move around freely in the forest, unmindful of officials' warnings.
The number of tigers in the Valmiki National Park has more than doubled in the last three years.
Authorities of the national park would give Rs.2 lakh as ex-gratia payment to the child's family in accordance with the government policy.