As reported by the World Wildlife Fund:

The greater one-horned rhinos in India’s Manas National Park — their population once completely decimated by poaching — are making a comeback thanks to joint conservation efforts under the Indian Rhino Vision 2020 initiative.

Today, there are 44 rhinos in Manas NP and a total of around 3,700 greater one-horned rhinos in Asia, up from only 200 at the beginning of the 20th century.