State Forest Minister Th. Debendra said this in the Assembly in reply to a question from Congress member S Bira.
Locally known as 'Sangai', the animal is found only at the Keibul Lamjao National Park.
The minister said that to protect the animnal, fodder plants were cultivated at their natural habitat in abundance while local volunteers engaged to assist the forest department staff in the job.
Two check posts were set up to prevent poaching last year. A campaign was also on to create awareness among the inhabitants around the park to protect the endangered species.