A leopard surfaced in Baijalpur village and attacked two villagers Laxmi Narayan and Rahul Kumar while they tried to catch the animal, Saran forest range's Divisional Forest Officer (DFO) D Ganeshan said.
A forest employee Lali Rai also sustained severe injuries after being attacked by the feline cat, the DFO said.
The injured persons have been admitted to a hospital for treatment, Ganeshan said.
Efforts were on to catch the leopard, the DFO, who was camping in the village with the ranger Shiv Kumar, to supervise rescue works, said.