Which National Park in India is famous as the last refuge of the Endangered One-horned Rhinoceros?

Which national park in India is located in the state of Assam and is known for its population of one-horned Indian rhinoceroses?

In which state of India is the famous 'Nanda Devi National Park' located?

Which national park in India is located in the state of Kerala?

Which national park in India is located in the state of Andhra Pradesh?

Which was the first National Park established in India?