Among the following Tiger Reserves, which one has the largest area under "Critical Tiger Habitat"?

1. The Critical Tiger Habitat (CTH) refers to the core inviolate areas of Tiger Reserves, identified under the Wildlife (Protection) Act, 1972, for the purpose of tiger conservation. 2. The question asks to identify which of the given Tiger Reserves has the largest area designated as CTH. 3. Nagarjunsagar-Srisailam Tiger Reserve (NSTR), spanning Andhra Pradesh and Telangana, has the largest CTH area in India, officially notified as 2595.72 sq km. 4. Comparing the CTH areas of the options (approximate values may vary slightly based on source/year but relative order holds): - Corbett (Uttarakhand): ~822 sq km - Ranthambore (Rajasthan): ~1113 sq km - Nagarjunsagar-Srisailam (AP/Telangana): ~2596 sq km - Sunderbans (West Bengal): ~1700 sq km 5. Clearly, Nagarjunsagar-Srisailam has the largest area under Critical Tiger Habitat among the given options.