The Indian rhinoceros (Rhinoceros unicornis), also called the greater one-horned rhinoceros and Indian one-horned rhinoceros, belongs to the Rhinocerotidae family. Listed as a vulnerable species, the large mammal is primarily found in north-eastern India's Assam and in protected areas in the Terai of Nepal, where populations are confined to the riverine grasslands in the foothills of the Himalayas.
The Indian rhinoceros once ranged throughout the entire stretch of the Indo-Gangetic Plain, but excessive hunting reduced the natural habitat drastically. Today, more than 3,000 rhinos live in the wild. In 2014, 2,544 of which are found in India's Assam alone, an increase by 27 percent since 2006, although in early 1900s, Assam had about 200 rhino only.
It is the fifth largest land animal.