Explanation:

Sariska Tiger Reserve is in Aravali hills and forms a part of the Alwar District of Rajasthan.

• The Reserve is immensely rich in flora and fauna and is famous for Royal Bengal Tiger.
• The park has populations of leopards, Nilgai, Sambar, chital etc. It also shelters a large population of Indian peafowl, crested serpent eagles, sand grouse, golden backed woodpeckers, great Indian horned owls, tree pies, vultures,etc.
• Sariska was declared a wildlife sanctuary in 1955 and was declared the tiger reserve later in 1978, making it a part of India's Project Tiger.

Hence option 4th is correct.