Answer: Kerala and Tamil Nadu
Notes: Kerala and Tamil Nadu jointly conducts a Nilgiri Tahr census to mark 50 years of Eravikulam National Park. Eravikulam National Park, Kerala’s first national park, was a sanctuary in 1975 and became a national park in 1978. It was mainly established to protect the endangered Nilgiri Tahr, a mountain goat species found only in the Western Ghats of Kerala and Tamil Nadu. The park also shelters species like Lion-tailed Macaques and Nilgiri Langurs. Nilgiri Tahr is also the state animal of Tamil Nadu.
