Balai Bhakta (55), a member of a poaching racket in the area, was arrested with raw deer meat and hides, a forest official said.
"Bhakta and his accomplices hunted down a spotted deer in the mangrove area of the park. They were booked under relevant sections of Wildlife Protection Act, 1972," he said.
The poachers had spread nylon nets with loops to ensnare deer and wild boar, the official said, adding that the department has launched a search operation to nab his accomplices, he said.