Q. Among the following Tiger Reserves, which one has the largest area under “Critical Tiger Habitat”?

Answer: (c) Nagarjunsagar-Srisailam

The largest tiger reserve in India, NSTR encompasses an area of 3,568.09 sq. kilometres in the Nallamala hill ranges of Andhra Pradesh.
The landscape hosts a breathtaking stretch of thick forest and incredibly rich wildlife.
The reserve spreads over five districts, Kurnool District, Prakasam District, Guntur District, Nalgonda District and Mahabub Nagar district.
Here, the Bengal tiger shares its habitat with more than 60 species of reptiles, including an array of snakes.
These reptiles are unique in many ways: they have no eyelids, no external ears, no limbs and sense their surroundings using their tongue.
The forest also has the ‘Big Four’ species of venomous snakes — Russell’s viper, common krait, common cobra and the saw scaled viper.
The Krishna river cuts its basin.
The ancient temples at Srisailam of Lord Mallikarjuna and his consort goddess Bhramaramba, an incarnation of Parvathi as the fair-complexioned boon from Brahma, contain one of the twelve sacred Shaiva Jyotirlingas and one of the eighteen Maha Shakthi peethas in India.