Statement 1 is Correct: The Asiatic lion is naturally found only in India, with its wild population restricted to the Gir National Park and surrounding areas in Gujarat. It is currently listed as Endangered on the IUCN Red List.

Statement 2 is Incorrect: The double-humped camel (Bactrian camel) is naturally found in the steppes of Central Asia, particularly in Mongolia and China. While a population exists in the Nubra Valley of Ladakh, India, its natural range extends across Central Asia.

Statement 3 is Incorrect: The one-horned rhinoceros is naturally found in India (primarily in Assam, West Bengal, and Uttar Pradesh) and Nepal. Since it is native to both countries, it is not found naturally in India only.